I like Lotus quite a bit, by far my favorite buffet in Charlotte. I usually go during lunch hours (before 4pm) because the dinner buffet runs about $10 plus drink and tip... I believe it's $6.99 for lunch.
Lots of vegetarian items! The mai fun, fried rice, and lo mein on the buffet are always vegetarian and I believe they make their own vegetarian spring rolls. I really like their sliced fried zuchini, it's not always served though.
They have a dessert bar as well as a freezer with about six varieties of ice cream and sherbert.