it's fun! I thought it was exclusive to Macs but I've just downloaded a PC version. I'm used to Firefox; haven't opened IE or Opera for years.
I'm missing the usual File Edit etc menus at the top though - can't work out how to "find on this page" in Safari and I think it's quite crucial to the MN experience; it's also quite slow, but I think that's because my Adblockers etc haven't transferred over.
Oh, I was using lots of tabs, rather than windows. I've given up on it now, as it was ridiculously slow and slowed down everything else as well. I had enough when it took nearly two minutes to refresh a thread.