I've heard mixed reviews, mainly from people whose opinions I don't know well enough to trust or not trust. I've heard its great, fresh, popular, not so fresh, inexpensive, overly crowded. The only place I've seen it reviewed in print is one of those Seattle tourist books that we bought a few months ago when we moved to get to know the city better (not for eating recs). This book also highly praised Blue C Sushi, which we tried and were sorely disappointed by (quality, freshness, and raw selection were poor).
So before I trek over to Musashi's for lunch and fight for a parking spot, please tell me if it's worth it.