My Wife and I checked out "Sushi X" restaurant in West Haven. Its all you can eat for 20.99 on the weekends.
At first glance you may think that this may be the same owners as the Sushi Palace in Hamden. The menu layout will look almost identical, however, once the food starts coming out, you can see the recipes are different.
You are given 2 sheets of paper, one to choose items from the kitchen and another sheet to choose sushi items. You can order as much as you want. That night they were giving away free hot Sake. Also, they had 3 specials that were not on the menu that you can order. 1. Short Rib, 2. Crab Rangoon, 3. Tuna Tartar.
All the portions are small so you can sample many different items from the menu. We ordered a variety from the kitchen.., shrimp dumplings, pork dumplings, spring roll, shrimp tempura, seaweed salad, Kani Salad, red snapper terryaki. plus all the above mentioned specials. Each plate came with one or two pieces of whatever you ordered. The seaweed salad and Kani salad were just ok. The Kani salad was much more spicy than we had at other places. The other kitchen items were fine.
For sushi, we ordered sashimi and some rolls which came out on a nicely illuminated platter. Some of the rolls had "crunchy tempura flakes" which we normally like. However, these tasted like they just put in panko breadcrumbs. It detracted from the rolls. The other rolls (sans crunch) were just ok.
The interior is nice. They are really trying in there. It wasn't busy or rushed (like the sushi palace). It was a nice atmosphere.
Final thought - If we are in the mood for all you can eat sushi, we'd rather take the extra 15 min and drive up to the Sushi Palace in Hamden. If you make reservations at the Sushi Palace, the wait isn't that bad and the food is better. I guess you are in a bind and don't want to drive to Hamden, the Sushi X can satisfy your cravings. Its not bad, its just a tier below the real deal in Hamden. Why settle for imitators?