I end up grabbing some food from Lotus a couple times a month simply because they are a block from where I work. If it weren't convenient I'd never go.
I recommend sticking to the basic dishes if you visit. Anything more "exotic" in my experience has been a disaster. I had some sort of baked macaroni one time and it was one of the worst dishes I've ever experienced (what was I thinking).
While I think the food ranks in at about 3 stars the service leaves much to be desired. Ordering over the phone can be a painful experience as can picking up your food or paying. If you need service ring the bell. If you don't you will be ignored.