I don't usually write reviews very often (in fact ever).  But I felt that the 4.5 stars does not currently reflect my previous sushi experience here.  

First off, the service here was really good.  The waitress was really nice, very prompt and courteous and provided the food quickly. 

The food itself, was prepared well, I usually eat a lot of nigiri and the pieces are ok in amount of fish, the rice was packed well and the quality of the fish was good.

The major downside in my opinion is that its pricier than I expected.  I wish Yelp would provide "2.5 dollar signs".  Granted, I did not come for "Happy Hour" which ends relatively early at 5pm.  I go to a lot of sushi restaurants and for the amount of fish provided, I would have expected it to be cheaper.

Also, the edamame cost $$.  Even the miso soup is not complimentary.  Considering the above average price, I've been to too many other places that have the same price, same quality, and provided the necessities for free.  Oh, I even forgot that a bowl of white rice for my child was even a charge.  

So, the nickel and dime of things I would have expected compounded with the surprisingly above average price, I can only say that Yen Sushi was "ok".  The other two people in my party (minus the children) also agree.