Had one for a year now, done 4500 miles including a 2000 tour of Ireland in the summer. It is almost certainly the best value money bike I've owned. Its performance is excellent if you stick to A and B roads and OK on motorways (but I can't see the point in riding a bike on a motorway anyway!) Getting 55mpg/250miles to a tank and its been 100% reliable, using no oil at all. It has a great riding position (for me anyway at 6 foot), comfortable and suprisingly few vibes if you cruise below 5000rpm. I'm still trying to get the suspension setup right when loaded (Yamaha side cases, tent on a Touratech rack and tank bag). It handles nicely with full fuel load, but gets decidedly wobbly as the tank dries up - needs more weight over front wheel. Standard Metzeler tyres are great in the dry, Ok in the wet, poor off road and horrible on white lines and raised surfaces. Will be try Michelins very shortly. The mirrors need to be further out (I can only see my shoulders), although Touratech mount extensions have cured this.
A bit disappointed in some of the build quality: Rattly fairing (sorted with lots of bits of old inner tube), rusty brake discs fasteners, exhaust headers looking very shabby and the speedo fogs up in cold weather. Basically its a great practical bike, looks the part, is excellent value and pretty good fun to ride. There are one or two build issues, but I've sorted most of them easily, but let's not forget it is cheap for what it is. I like it a lot and I can see myself keeping it for some time and I'd thoroughly recommend the Tenere.