I have used VS 10+,It is one one of my PCs .althoug i havent used it since Feb.
It is quite feature loaded
Coming from Adobe Premiere where you are used to a timeline and that cetain "logical" way of editing.. It might be somthing of a bit of culture shock
It tries to be helpful , hides user manual controls away and seems ( IMO) unsure if whether it is targeting newbees or advanced users
I (personally) don't like its interface much but comparing it to ver 8 and 9, 10 is much better
It has its devotees so I imagine it must be me..
But I also use Adobe Premiere Elements , Sony Vegas and Avid Liquid .. all of whose GUI is different and to some... simply bewildering, but what I find about them is the logical nature of GUI once the basics have been learnt
Having had a rant

, I have to say it is very feature rich and simple to use and unlike some software , relatively stable and not requiring a Dual core PC with 2Gb RAM .. and at £19 almost 1/3 price. Even if you don't like it it wont be a great loss
The alternatives are any of the current Software including Premiere Elements 3 ( near enough Premiere) and the Sony Vegas Movie Studio Platinum +DVD .. ( In short most of what is out there should be fine)
These last 2 have trial downloads if you wish to try before you buy
PS: Mark and I were posting simultaneously: second time today
But.. The Vegas suggestion makes perfect sense because it does give you an upgrade path to AVCHD later