I have Photoshop, so .NET paint is pretty much useless for me. But .NET is rather fun. I call 1.1 a beta, but 2.0 just works great. Almost anything I need is automatically in the libraries. I went to do some encryption and ta-da! everything I needed was right there, easy to use with only Intellisense to guide me.
I have Photoshop also... some people cant afford it... paint.net is a good editor for FREE.. ;)