Mekong is the other large asian grocery store in the East Valley. Personally I like Lee Lee's better because
1) it's closer to home and
2) prices are lower
It is a bit cleaner than Lee Lee's, but possibly because it's newer. I'm not totally digging the already wrapped produce. I like to hand select my produce and unfortunately this doesn't allow me to do so.
But I still think it's a great asian grocer alternative for when I'm dining near by, visiting the nail supply store next door or Lee Lee's is out of something.
Both places offer the 10% "vip" discount, though.