I updated it a while ago and it is not as efficent. takes some getting used and I also find it doesnt open as many links as I'd like to. if this is progress they can keep it.
I have had it a while and I think its okay but it took some getting used to. I was always shutting down what I thought was one page but it was all the pages I had open :-( at least it asks if you are sure you want to shut down though.
You can get rid of the tabs part by clicking on Tools > Internet Options > Settings (next to Tabs) and then deselecting the little box at the top (Enable Tabbed Browsing).
I updated yesterday, don't like it, but will get used to it!
Had it for about a month now. I like it but it is a little slower than internet explorer 6. Love the tabbed browsing, which i know firefox has had for donkeys, but I never could get used to firefox.