I'm on my second K6 (2006) DL1000 both of which I had from new. First one did about 30K. I worked part time for a Suzuki Dealer and in 2008 Suzuki GB moved premises and found 6 x K6's they had overlooked. I got one at a good price meaning the change cost me nothing.
I've never had a mechanical issue with either bike and find them very comfortable. My wife also rates the comfort of them but she did cut her teeth later on in life on an SV1000 and a GSXR1000, so anything would be better. In fairness I did dabble with a BMW1100RT but she prefers the VStrom.
There are a few cons though. The OE Luggage is rubbish and the Top Box sits to far forward making it cramped for the pillion and also making removal of the seat with the Box in place impossible. Many owners had the rack extended so the Box can sit further back. The panniers are an impractical size and mine opened of their own accord on several occasions before I ditched them.
I use a Givi 52 litre Box which sits in the right position when the adapter plate is fitted and also Trax Boxes. Not pretty but much more functional. When Touring we had bags strapped on top of the luggage and were grossly overloaded but part from getting a bit light on the front when dealing with uphill mountain hairpins, they put up with the abuse well.
Having said that I did kill the OE Shock at around 23K on the second one and have replaced it with a Nitron.
The front benefits from a Fork Brace. The brakes need fairly regular attention to keep them tip top. I clean mine about every 2K. Beyond that you can feel them going off and piston grab is a common problem.
Buffetting is also an issue for some. I cured mine with a Madstad Bracket and MRA Vario screen.
Fuelling from standard is a bit suspect, very lumpy low down with lots of popping on the over run, enough to stop the engine. Both mine were fitted with Power Commanders and had Custom Maps done which transformed them. (The benefits of working for a Dealer

)
Regularly toured in Europe on them, particularly The Alps which is where we now live.
Arghh...... I have also only just noticed it was an old thread Doh!