Yeah,
As most of the other people here said I'd whole heartedly recommend it
- I struggle not using it now, coding seems slow by comparison :-)
Learn the features and tailor the inspection options to your preferred
style and it pretty much stays out of the way.
My only complaint with ReSharper is some of the dialog / hint boxes
get in the way so you can't see what your actually trying to type
underneath. You could also have a look at ReFactorPro by DevExpress -
I've not used it for a while but I preferred its dialogs to ReSharper,
they stayed out of the way a little more.
Of course, as Neil D said - if JetBrains happened to have a free
license going spare I'm sure I could play with it a little more and
get used to them ;-)
Mat