This is right next to the Jinmao and I'd agree, it is a great place for a fancy lunch. The dim sum is very good and they have a very open feeling. By foreign standards it isn't too expensive and the decor is very, very nice.
Paradise Garden is located on the 6th (top) floor of the J-Life Building, which is an annex to the Jinmao Tower. This is a Dim Sum place There are private rooms for group dining, and tables in the open atrium area for groups of 1-6 people. The food is of very good quality and they have a good selection. When I go with my colleagues for lunch we usually pay between RMB60-90 per head