It's funny that most people recommend to buy pro software.
When I started editing, I used software from MAGIX that used to crash all the time. But I'm happy that a started that way because there were no confusing functions and tools that distract you from what really matters: your edit.
Also I learned to work around problems and realized how important saving your project is. :)
Since I moved on to Premiere Pro, I really appreciate every single tool since I really use them and they don't distract me anymore.
I used Sony Movie Studio a couple of times and I know editors who really like the Pro version, so you can't be wrong going with it. It runs very stable and has enough features for small projects (even 3-way color correction - unusual for most beginners software).