Still on the fence here. I've been quite happy with Win 8.1 no issues at all other than the problems I had when I tried unsuccessfully to install PT 8 (which was not qualified for Win 7/8 but some people said they were able to get it to work so I tried several times before giving up). So that wasn't a Windows issue but a Pro Tools one.
But I don't really care to reinstall everything if I download a new OS. Even if I have all of the data on a separate drive and the SSD contains only the OS. I have the time to mess with it but I don't really want the hassles..especially ones associated with having to explain all of the changes to my wife. It's my understanding that I can download it for free right now...does that just download the OS but you can install it later? I might do that since I have 3 HD (one is the SSD) and have plenty of storage