We (my DF and I) went to Tschoup Chop last month. The atmosphere was wonderful, quiet and romantic. I personally thought the menu was so-so...I was kind of disappointed in the choices (but then I had my heart set on the Hawaiian Platter they used to offer). Personally, I would think twice before I brought my kids (DS 15 & DS 18), because they don't appreciate finer dining. Only you can know what your children will enjoy.
The food was wonderful though, and the staff was exceptional. We got a complimentry "carrot nest" for our 1 year dating anniversary. It was a really cute tiny fine-shredded nest of carrot with a tiny piece of pork on it. My DF and I laughed about it later, thinking of the commercial with "Elf Food".
RPR is a resort located on Universal Properties. They have a walkway along the river that leads to City Walk...which is what I'd describe as the entertainment side of US/IOA...you know, dining, shopping, etc. Kind of like Downtown Disney, only more convenient to the resorts, and IMO more adult oriented.