I tried some Raid Finder for the first time in Mists of Pandaria
The group for GoM was nice a friendly. Also I got a Cloak and Offhand upgrade during it.
VoM was non-stop complaining. It stated with I put down feast. A few complained it was the 10-player feast, but I had put down 3. Fight after fight, they would belittle people for not being good enough or fast enough. I did receive a Helmet and Shoulder upgrades after spending my coins.
Clearly I had far more fun during GoM than VoM.