Just like the title says. A lot of people are reporting big problems, but it may be carrier or model dependent. I have been wanting this preview for a while and, if this particular variant isn't too buggy, I'd like to install it!
I have a 925.. unlocked however, but my update was fine.. smooth all the updates took about 30 min each by all i mean the 8.0 one, the pre-instal/download and the actual install