I put 1500 miles on mine last year. I can't see myself on any other sled. It just fits me and the way I like to ride. In the deep, I haven't been on a sled that carves any better. The sled does pretty good in climbing.. though it really needs to be clutched before an accurate comparison is to be made... I was at 7900 before I clutched and 9100 after. Yah I would think 1200 rpm's would make a difference!
The suspension on the sled is great for trail riding and mild agressiveness, but if you jump at all it is a total joke. The front ball joints were a joke also... Mine were toast and were pretty bad. Though once a couple of upgrades are done, it does really well. The sled feels really natural in the air and doing other aggressive maneuvers.
I love love love the motor. It has so much torque down low, it feels stronger then an rt1000. Note that is only down low, the rt1000 takes it on top. I really like the sound of the motor too. I wish yamaha would just sell the motor and side plates... It would save a lot of time and money.

Not having to worry about blown motors or the lifespan/condition of the motor is great. Saves a lot of worry and thought...
The stock skis are really good too, though the track sucks for heavy types of snow.
The riding position is the best, large running boards are great, seat is really good too. Electric start is a nice feature, especially in tight technical situations where you got stuck and can't really get up to the sled to pull it over. The mechanical reverse sucks compared to RER and other electronic stuff, but I will never have a sled without reverse again!
The headlight loves to connect snow, which is pretty lame for night riding.. It should just be replaced with some headlamps from cyclops or something. The sled needs more storage for sure, and the tank could be a little bigger for more range, but it is comparable to a doo 800.
I would say it took me half the season to get used to the sled. I seem to take longer then most, but coming off the rev, it did take me a while. Note that this was my first year in the mountains, so there was a lot of learning and confidence issues starting out.
I have ridden some new dragons and new m sleds.... they just don't seem to fit me like the nytro does. As most new sleds today are very capable, it is all rider preference and comfort.