I've bought a few wonderful tomatoes from the farmer's market, and our CSA gave us a few great (tiny) tomatoes, too. But our plants out back have been a bust. Early in the season the cherry tomatoes produced a handful of nice fruits, then withered and died. Then our large plants, grown from seeds, did indeed get huge, but each mysteriously bore just one fruit, and even then only now have any of them begun to turn red (!). A few fell victim to squirrels, too, but they're not too picky when it comes to tomatoes to ruin.
So all in all, a bummer season for us. That's perhaps two in a row, if memory serves. Our peppers are doing OK, though.