Win7 was stable all weekend long. Only complaint was the network did not reactivate after computer returning from sleep mode. Recommendations are to replace the device driver. I plan to give that a try tonight.
It was a little bit of everything. almost all of my top level characters saw some time in Scarlet Monestry - chasing the Headless Horseman. After my paladin's lucky break last week, I was not planning on getting anything.
But in the one group I ran with, we saw 4 Sinister pets drop! (I passed, since I have no love for pets), but lo and behold! After that run, I switched to my Shaman, did the Trick or Treat with the innkeeper... and got the Sinister pet.. Well well.
My Shaman also reached level 78 and was asked to heal a regular ToC instance. Took us 3 tries to get the Black Knight down, and I walked away with 2 level 80 healer items. I also joined regular Utgarde Pinacle run as DPS, and got 2 gear upgrades from the quest rewards.
She also did a couple of Alterac Valley runs for experience, but most of the runs were just a mess. However, when you find a good team that knocks over Drek in 12 minutes or less - its tough to go to bed.
In conclusion - PUGing is a win and a miss scenario. You NEVER know what you are going to get.