I like Cafe Monte a lot, I am not sure why there are so many mixed reviews. The waiters may seem indifferent at times (possibly this is part of their French ambiance) but I have never had bad service here. They have started being open for breakfast again. They serve European (read excellent) coffee. Their side salads at lunch are really good as are their sandwiches.
They have a frequent eater card but I am not sure what it does.
If you or your friends are in the mood for a French experience then this is the place to go in Charlotte. They just started offering all you want moules on Mondays, they are very good.