It is a great tourer & all round motorcycle. I can agree with all that navi8tor says except his last comment, oh you will be surprised and dissapointed. I know I read all the reviews and purchased a new 2010 TDM 900A with scottoiler taller screen & center stand in 2011.
My previous two bikes are BMW1100gs great bike but getting old and the grearbox was wearing out, and a Harley-Davidson 1450FXDXT not such a great bike but you have to try these things don't you.
It was a wet day in Sheffield that I took possession of my new bike, over the next few weeks discover a few problems which wohld dissapoint many a new owner.
#1 You would not think Yamaha would go to the trouble of building a bike & then fitting such lousey tyres
Tha TDM would not settle on long bends, on low speed roundabouts the front end woulw roll around and was quite unstable,I tried differant tyre pressures raised and lowered the suspension but to no avail, after 4K I fitted BT23's what a differance a tyre makes.
#2 Being an X Harley owner,when I think of a V twin, I think of low down power. Yamaha make the point that the TDM is rather like a Vtwin,that may be but, low down power it has not,drop the revs towards 2000rpm and don't use the gear box at your peril,things become very snatchy & very easy to stall.
I'll not go into the whys & wherefores,just visit the JBX's excellent web site where he will explain all!
I took his advice and removed wire #8 from the ECU plug, now I can drop down to 30mph 4th gear and pull away no problem.
#3 The TDM is a little quiet, like a couple of Honda 90s ticking over. I fitted a pair of Beowulf stainless oval silencers, the bike sounds much better & as an added bonus removed a lot of weight from the rear of the bike and feels easier to flik through bends now.
Please don't be put off by my moaning with these mods it's a good bike,look at second hand TDMs, many are older & high mileage always a good indicator of reliablity.
I took mine from Zeebrugge to Narbonne this year on a two day ride via Mons,Rethel,Troyes, Auxerre,Moulins,Clermont,Lodev,Lunas,Roquebrun,Cuxac-d-Aude to Coursan. D&N roads 55-75ish, 65/70+mpg!
A75& Belgian m/ways 75/80 55mpg, weather, not good till Lodev!

K&N is next on the list,did you have the bike's fueling adjusted after fitting the K&N?

I do know about the fueling can be adjusted via the dashboard, however I'll leave that to the experts.
with the JBX mod & pipes fitted the colour ofmy pipes is on the dark side (black/darkbrown) however after a major service & iridium fitted looked much lighter after a blat up the M1 home. I think once the K&N is fitted I'll have it checked on a rolling road to be on the safe side.