I had an overall very pleasurable experience at Kai Zan a couple nights ago. As you may have already gleaned from reading up, not everything was perfect. But I have to say, for the price it has to be close to the best value in Chicago. With some more experience, I feel as If I could really learn to navigate the menu and come up with a decent ordering strategy.
Between the 4 of us, we split 2 omakase menus and ordered a bunch of extra things.
Shishito Peppers with bonito flakes
I enjoyed this, I always love shishitos.
Gyu Tongue Kushi (grilled beef tongue)
I thought this was excellent. Perfect flavor, juicy, tender, It was a larger portion than the picture looks.
Tonkatsu Shiso Age

Though I thought this was a great dish, for whatever reason I didn't taste much shiso. Otherwise this was a great snack, and would order it again.
2 Escolar Pearls and 2 Maguro Pearls. (Omakase) 

Basically what they call a "pearl" is a 1/2 size nigiri with some stuff on it (soy sauce, truffle oil and green onion). They were decent, but a little overboard for me, I'd rather go with more traditional stuff in the future.
Kaki Fry (deep fried oysters)
This was from the monthly specials menu, and one of our favorites. We actually ordered a 2nd round. At $9 for 5 of these, it was quite a deal.
Tako Wasabi (Octopus and squid with pickled wasabi and vegetables)
Also from the monthly specials, it was pretty good. It had a nice wasabi kick to it.
Agedashi Tofu
Probably the worst dish of the night. The flavors were all there, but the texture of the breading was a mess. It was gooey and stretchy, almost like a mochi.
Hamachi Collar
Another monthly special, for $14 (or $19 with bento box) it was another crazy value. It was as perfect as hamachi kama can get. At this ponit, I am starting to realize the monthly specials and broiled items are where to look for ordering.
Saba (Omakase)
This was probably some of the best fish of the night. Excellent.
Tuna ceviche "mini-martini", Tuna, avocado, citrus. (Omakase)
This is an example when the quality of the fish wasn't the best. It was not the type of tuna I like. No fat content and bland. As silly as it looks, I didn't mind the "mini-martini" presentation, and I love shiso leaves. We were told is not on the regular menu anymore.
Oyster and Uni shooters. (2 of Omakase).
I enjoyed these, though the others thought maybe it was a bit too salty.
Angry Crab - tuna wrapped around spicy crab with crispy bits and other stuff on top (Omakase)
Not my cup of tea, the tuna isn't the star of the show at Kai Zan.
Soup - Tuna and shitake mushrooms. (Omakase)
Nothing to write home about.
Grilled mackerel (Omakase)
Excelent! I saw a whole grilled Mackerel on the monthly specials ($14). If it's like this I would be very excited to order this one again.
Uni
I ordered this extra just to try the uni plain. I'm not sure if it's just that I'm used to eating less than fresh uni, but I thought this actually suffered from lack of flavor. Maybe it was served too cold or maybe this is just what fresh uni tastes like. I enjoyed it but wished it was not served on a cucumber.
4 more courses from the Omakase
Crab cake. 
If I recall correctly, this was a favorite of our dining companions, but I don't think I had a chance to try it.
Pork belly.
Rich, flavorful, fatty, excellent.
tako wasabi
A small sampling of the same thing we had already ordered. (which brings the point, that with as much overlap on the omakase and specials menu, it would be a good idea for them to let you know if you're ordering something which is on the omakase, or perhaps had a menu outlining what to expect with the omakase.)
Shrimp and shitake.
Wasn't bad, but wouldn't order it next time.
California and Spicy Tuna rolls

Believe it or not, these were some of the highlights of the meal. Revoke my LTH badge if you wish, but I actually enjoy the occasional California roll. The rice was about as perfect as I've had. Perfect texture, individual grains, ever so lightly pressed together, as you see in the pictures. I wish i knew this earlier on in the meal, and I'd have tried more rolls. Prices from $4 to $6, a great deal.
Scallops Negi
Not bad, but nothing memorable. This would be a good time to bitch about the copious amounts of shredded cabbage with ginger dressing we had to endure. I think if they paired a unique and better side with each of the fried/broiled items, it would add a lot to the overall experience.
Sashimi (Omakase): 

The sashimi selection here was not the strong point of the meal but I remember really enjoying a couple pieces, while a couple others were just so-so.
Dynamite Mussels (Omakase):
Mussels covered with a whole bunch of crap. Not at all the kind of thing I like.
Green tea ice cream:
Cheese cake mousse:
Fried Chicken:
Not at all burnt as mentioned above. I definitely enjoyed it, but the meat seemed over brined, to the point of it having a spongy processed texture, though it was bizarrely moist for white meat.
In the end, we had quite a feast, way too much food, we actually doubled up on a couple of other dishes, and still the cost was about $70/pp after tax and tip. I look forward to coming back, but probably won't do the Omakase next time.
Our lovely dining companions (and comfortable room):
The space was extremely comfortable and had a nice vibe. We were sat in one of the semi-private rooms, which was spacious and comfortable.
The sushi bar:
We brought 3 bottles of sake, and the staff did the BYOB service up right, bucket of ice, sake decanter, even poured our sake for us when we were empty. Considering we weren't necessarily tipping on the drinks, the $5 corkage per table (not per bottle) was a steal for the service we received. They even offered to warm up any sake if we wanted it warm. Service was more of a tag team effort it seemed, and they really had the teamwork down. Every dish was described well, and everyone we asked questions to seemed very knowledgeable.
Part of the secret of a success in life is to eat what you like and let the food fight it out inside.
-Mark Twain