I've probably used it 20+ times. I've also used the spa at the gf, but I know it's closed for refurb. It's always been relaxing and the services have been great.I've taken numerous girlfriends and dh. Everyone was delighted with service.I'm taking my dsil there in just about 3 weeks in fact. It's great. Enjoy it,and I think the service was 10% better and the atmosphere about 20% better than gf, which was also great, just not as great.
I haven't been to ssr because it seems a bit far off (we always stay monorail or epcot) so I can't speak to that.
Enjoy!