We'll see how things turn out since I have my ressies booked with them for a trip in Oct. I did have several questions about the resort and ended up calling them. They were very pleasant and easy to work with. I did book thru them, recieved my hotel confirmations and printed everything out just in case. I did call my hotel to confirm my reservation had been made, along with receiving my deposit on my credit card. Everything was fine, along with my cc charge on my bank statement.
I have read good reviews that several others have used HotelKingdom and that made my decision to go with them since their rates are very good.
They do have certain restrictions/changes/cancellations for each hotel so be sure to read their policies before you book.
If the search is up, you can do a search on HotelKingdom. I'm sure you will get alot of posts, it's pretty popular on the Orlando hotels section.
Happy trails!