I feel that the best way to rate this place is to think of results vs expectations. The moment you combine sushi and thai in one place, you know neither will be the best ever. The place is small and unassuming, rarely full (I was there on a Saturday night and barely half the place was full - and got even emptier around like 9PM) and does not try to over impress with anything.
From my perspective, the place is nicely decorated, clean and has a nice vibe to it. Tables are pretty close together but the emptiness allows you a lot of privacy. Not a bad place for a date :)
Service is a bit slower than expected as only one waitress works there. Not the best thing, but when the place is so empty you really don't need more. We got served and used the waiting time as a nice moment to chit chat with my girlfriend.
The sushi mix plate was quite nice - not mind blowing, but did the trick (I will admit I am not a sushi fan). I had the yellow thai curry and my gf had the vegetarian pad thai. Both really good (my yellow thai curry with the coconut rice was a great experience and enjoyed every bite of it). Did any of them beat the quality of a top sushi or thai restaurant? No... but then again, enjoyed fully in a nice clean place and the experience was really nice... just like the price. Very decent prices overall.
Take the place for what it is and enjoy it... not a great place but you will not be disappointed.