I've recently started using ReSharper (as an add-on to CodeRush which
I've come to love in the past months). I've installed the ReSharper
trial mostly because of the Code formatting, Error highlighting and that
little lightbulb thingy (which is included in VS 2005 by default I
noticed, MS is paying attention).
I've come to completely dislike the intellisense replacement. I don't
exactly know why, but it's not my thing. Teh problem is that I couldn't
find a way to turn it off without losing the default one.
Another issue I have with it is that I've been using the coderush
templating system, which is a bit more powerful than the resharper
templatesystem at the moment. I'd like to be able to turn all templates
off with one tick.
Disabling complete features is available in Coderush, which makes it
easier to work with it in combination with other IDE integration tools.
From a Coderush perspective it would be even better if Resharper could
integrate with Coderush altogether, but I guess that would never happen
;) It would prevent all sorts of strange conflicts I've had to fix by
disabling features from one application or the other.
Some features I seem to have lost completely, like
WindowsIdentity wi = new(press space)[automatic pop-up of WindowsIdentity]
Just my 2 ct.