First of all, congratulations on the wedding and Disneymoon.
How romantic! I so wish my husband and I had gone to Disney for ours. Secondly, I have to shout-out Kathy (Katmark) again for putting together what is, IMHO, the best, most comprehensive, friendliest resort thread on the Dis.
My husband and I went to CSR last February for an anniversary trip (number five). I chose the resort because I thought the newly rehabbed rooms are beautiful. Then, everything I read on-line just reaffirmed my choice. And I was right! It is really, incredibly beautiful. The Dig Site pool is amazing and the hot tub is HUGE!
Personally, I think the convention guests are a blessing in disguise. Yes, it might be weird to see folks walking around in business casual, but we didn't have much interaction with them. As a result, the resort has a slightly more adult feel that some of the others we visited. Don't know if you'll be using the bus system, but the busses at CSR were consistently great all week. No long waits, we never stood, etc. I think that has to do with the fact that so many of CSR's guests aren't going to the parks all that often. And it is nice that CSR doesn't share their busses with any other resort!
Have a wonderful time. I'm sure you'll enjoy your trip.