Yes, I have heard the same.. but all of the girls said that MOST of the stuff is actually taken care of once you are there, and they were happy in the end. So if you can stay calm and not worry about every detail too far in advance, I'm sure you will be fine. **I'm trying the do the same** haha Sooo much easier said than done.
I'm getting married in July 2008 *tentatively*, so we'll be on a similar timeline... if you do end up choosing the Riu we can help eachother and share bits and pieces we get from them!
Good luck with your decision!!