I'm taking some friends to dimsum. Most have never had it before and I don't think they'd appreciate the hole in the wall quality of Mark's Duck House which is where we usually go. Plus, it's pretty noisy and hard to talk. I've heard China Garden in Rosslyn is good, tried it once and was really unimpressed but we had gone later in the day and it wasn't crowded. I think my friends would prefer a restaurant more like that decor, though. Is it worth taking them if we go earlier? Any other suggestions in NoVa? Thanks!