At Tenshi Sishi size doesn't matter, it's what you do with it. Tenshi is small with maybe a handful of tables. The "bar" can seat 2 people tops. However, what it lacks in size it makes up for in both food and proportions.
I though the sushi was very good. The fishy half of the sushi combo I found delectable. What was surprising is that the pieces are quite large. Though this is usually a sign of bad quality sushi, Tenshi's fish impressed me. That being said, I don't think the rice that accompanied the sushi was great. After all Su-Shi means vinegar rice and what puts a good piece of sushi over the top is a wonderful vinegar rice punch ... at least in my opinion.
I found Tenshi's atmosphere, service and food fun and enjoyable. It isn't the best sushi I have ever had, but it does well and is reasonably priced. This would be a 3.5 star place for me, but round up for a good Chu Toro!