Great gun..used it to do my Black Badge course...
(Wanted something that was simple to operate, accurate enough, and wasn't going to crap out at a critical jucture...did it all, in spades!)
I have a G19 (Questar), G17 and my G34....I like them all, and before getting the 19 would have said the 34 was my favourite.
As stated, the pluses are the longer sight radius, extended controls and 3.5" trigger...the minuses include that it's (slightly) more unwieldy, but not much.
All in all, easy to recommend, and I still prefer it over the G17.