one of my best friends recently got a 910r and it is ok i guess. the real let down for him i think has been the limited number of things that we can do to it. there is just not much out there for it and what there is is really expensive and hard to get. i think it is very comparable to my s4rs performance wise. so if you have the loot it comes down to what you like.

on a side note there is a guy with a S4 around here that dosent wave to any one (like he is to cool) but i have only seen him riding twice in two years so....

A good review from MCN.  They almost never hand out 5 stars.
http://www.motorcyclenews.com/MCN/bikereviews/searchresults/Bike-Reviews/MV2/MV-Agusta-Brutale-990R-2009-current/