I have been going to Nami for a few years now, and it's too bad I have to update my review from 5 stars to 3 stars.
I remember Nami as a place that you could trust to have reliable, decent quality sushi for extremely reasonable prices. However, the last few times I went the quality has been going down notably. Most recently I went for happy hour (2-4PM Monday-Thurs), and the all the rolls I had were worse than grocery store sushi. While the fish content was still pretty decent, the rice was completely soggy and sticky and the rolls were almost unrecognizable.
The price was awesome, for $3 a roll, but that can't even come close to excusing the awful rice.
I have also started to notice that an average dinner at Nami without sashimi ends up being about the same as a decent AYCE dinner ($28), so I've pretty much stopped going to Nami. Overall in a pinch its still okay, but if I don't see improvement next time I'm there I'll probably stop going.