Highly recommend the Excellence!
On the Excellence Club: You upgrade to the excellence club and those rooms are in a different building. You can be in the excellence club and have a ground level room, ocean view room, or rooftop room.
You get much better views from the Excellence Club rooms, but outside of that, I'm not sure it's worth a ton. Unlike most resorts, you don't get a wristband, no matter what level you book at. Thus, there is no way to differentiate who is excellence club and who is not.
Only benefits of Excellence Club:
-Seperate, more quiet, pool
-Better ocean views
-Expanded room service menu (room service is free and is 24/7)
-Excellence Club private room has snacks and liquor options
That's about all I remember being special about it. If you are not going to worry about the ocean view from your room, then that eliminates that benefit. And while the private pool is a nice feature, it's certainly not worth an extra $1000 by itself. I didn't think the liquor options in the Excellence Club private room were any big deal (plenty of good alcohol at the other bars). Really, the only thing we loved about the Excellence Club was the room service (which we used often at like 2am) and the better views. The pool was nice, but again, wasn't worth the upgrade by itself.
Hope this helps and again, I loved that resort.