I took the plunge and updated to OSX Mavericks last night.

Since most of you are Windows, and always share your own war stories, I will let you know about mine, in this thread.

First, it took about 3 hours to download with home cable Internet (usually 126K).

Second, it too 2 hours to actually install after that. I hate it when the progress window says "less than a minute", for 30 minutes! Makes me very nervous something has hung! (In the different context from "hung" used in most posts here).