We just came back from staying club at HRH, and I would definitely do it again. If you are planning on getting a cabana, you get it for 1/2 price (which saves you $50) and having a cabana the first day we arrived really made the trip. It was the best! We enjoyed it so much we were tempted to rent one for the next two days also. Bagels and danish in the morning are fine for us, and its the convenience that really mattered. My husband would run and get the bagels and juices while the girls and I were still getting ready and bring them back, so it didn't really matter if there were seats or not. Plus if you go buy a plain bagel in the snack shop at the HRH, I think it is $3.50 (my daughter she wanted one at noon one day). When you start adding up on what you would spend on breakfast alone, it becomes an easy decision!
I have read on these boards about how unruly and crowded the club lounge gets, but we did not see anything like that. Even when the free beer, wine and appetizers were out, the lounge was still very manageable. The appetizers were okay (first night chicken,second night meatballs (my daughter loved these, she ate about 10 of them!)) and we missed it the third night. I wouldn't come back from the parks just for the appetizers, but its nice to have when we were there at the right time. The girls went to get lemonade several times throughout the day from the lounge, and really enjoyed the sweets as well (first night cookies (big, bakery style, and then oreos and chips ahoy as well, second night huge rice krispie treats, and the third night awesome brownies).
All in all, staying club at HRH really added to our trip, and I would not hesitate to do it again. If you have any other questions, please let me know.