Let me put it this way, if I had to choose between my KLR and the Versys, the Versys would win. I was actually thinking about the Wee-Strom before I got to ride the Versys. The Versys feels like it has more power down low, and it is more maneuverable that the Wee-Strom. It actually has far better road handling than a KLR or Wee-Strom, and you'll love the fuel injection.
She handles like an oversized super motard, and you can't resist finding back road twisties to ride through. On the twisties it will match any crotch rocket, and because of the parallel twin, you can open the throttle up sooner than the inline four guys, this means you come out of the turns right on their asses and they can't lose you. The reason you can do this as the twin builds power slower and is less likely to break traction if you hit the throttle too soon.
In short, the Versys is a very forgiving bike and is extremely neutral in it's handling. Some think it is a boring bike as it will do pretty much what you ask of it with little or no unpredictability. She'll lean over when you ask it and flick over to the other side just as quick. In addition, if you are use to the KLR brakes, be careful of the Versys, it has much better brakes. I've also done as much as 730 miles on its seat without any problems and lets just say I weigh more than you.
The only real downside to the Versys is the OEM tires, they are crap when cold and really need warmed up before you hit the twisties. They are also crap in the cold rain. I'm looking at the Battlax BT-021 Sport Touring Radials when I get ready to replace them.
So yes I like my Versys very much. I've had it in the PA state forest on their crappy gravel roads and some similar roads in WV. It handles fine, but you need to remember it is a road bike, it'll handle almost any road as long as it is a road. There have been people that have had some success putting dual sport tires on them and having them do even better.
It was this last weekend that finally made up my mind on my KLR. I have a tendency to fall down off road, and that thing gets to heavy to pickup after a while, and my back is still feeling it. I do like having a dual sport again, but I need something lighter.

and easier to pickup

So it will be up for sale soon, and I can see a KLX being the replacement.
Maloy