I side with the many negative reviews - overpriced and underwhelming. I also realized that ALL of the good reviews you've read here were by first-time reviewers who haven't reviewed any other restaurant. These reviews are the obvious work of desperate restaurant management. There are many, many great dining options in Baltimore but this is not one of them.
Absolutely the highest quality sushi between the beltways. The whiteboard specials are consistently delicious (if not a tad overpriced). If you don't like to wait, avoid going there on Friday and Saturday evenings!