Despite all the bad reviews, I still wanted to give Hana a try for the atmosphere (I fell for the gimmicky monorail). I don't really have much to add since I am in complete agreement with the other reviews.
The Sweet Shrimp had absolutely no taste to it. The Japanese Style Fries didn't have enough sauce. The first piece of Cuttlefish I had was alright. The second piece so hard I had to spit it out because I couldn't bite into it. Salmon sashimi was alright - just your average AYCE quality.
Most of our food came pretty quickly with the exception of the BBQ Eel and Avocado Roll. This was our last item to arrive and it took ~25 mins for those three pieces. It was probably the tastiest thing we had all night though. I think the Chirashi ($7.99) was the most worth it for what you're paying. Sushi rice wasn't very flavourful.
ATMOSPHERE/SERVICE: We made a reservation for 8:30pm on a Saturday. It was a full house but we didn't have to wait too long for our table. The servers were nice and friendly. The restaurant itself was spacious and brightly lit with high ceilings. If you sit in the middle area, the top conveyor is the one with the bullet train that brings you your order and the bottom conveyor is one that you can just take from. If you sit on the sides/along the wall, both your conveyor belts are the bullet train.
I also got a stamp card for a free $2.99 plate on the next visit. This is a great idea to get customers to return but I know I won't be using it based on this experience. However, I think Hana has a good concept with lots of potential; they just need to improve the quality of their food.