First i want to tell you that the new builds after the rework seems to be more stable (which means less exceptions are thrown) overall.
After installing build 2153 i had a number of exceptions (started with RSRP-267169 ). After deleting R# cache the problems where gone. Sometimes later i wanted to disable R# to compare R#'s tooltip behavior with the original behavior. As i selected "Resharper/General" in the options menu, Visual Studio crashed. Unfortunately ic couldn't reproduce this.
The main thing i want to note is that the tooltips in the editor window did not work as i excpect (For your information: i work with Visual Studio 2008 on a VB solution). Normally if you hover with the mouse over a variable or method name in source code VS shows me a tooltip with the corresponding declaration. With R# enabled tooltips for methods aren't shown and tooltips for variables are only shown, if i place the mouse at the end of the variable name. I reported this long times ago and i wonder that it isn't fixed until now. It's very because i always have to use "Goto Declaration" to see where a method or variable is declared. I wonder why not more users stumble about this, but i think it's more VB related because you can declare globally scoped variables and methods very easy in modules.