I had a Blackbird for about a year - it was supposed to be the next step up from my VFR750 at the time. But, overall, I was a bit disappointed with it which is why I only kept if for a year.
What I liked:
Turbine like engine incredibly smooth
Very Fast.
Great Handling.
What I didn't like:
Cramped riding position for a Sports Tourer.
Couldn't see much out of the mirrors.
Did have bar risers on it, I took these off to see if it would make it better for me. It didn't.
Heavy of fuel... for a Sports Tourer. 36mpg on a good day.
Lot of heat came off the engine - very noticeable in Town Riding
Cumbersome to handle in Town Riding
Very Fast - the old cliche... I'm going to kill myself on it (or loose my licence)
I did that Isle of Mann on it - and managed to get a lap on the circuit. I remember coming around the Goose Neck and thinking, right, this is the only time you can do this so I opened it up. Went past a number of 'sports' bikes like they were standing still and saw the needle wind up so quick it scared me a little.
The ride home from the Liverpool docks down to Wiltshire in the very early hours was very quick, smooth and the bike didn't miss a beat, but I had to re-fuel in three times on the trip home.
I also found other Blackbird riders to be, erm, not the nicest of people compared to you lovely lot here on V-Strom. Sold it, didn't really loose anything except the cost of a service in the time I had it.
But - I guess, get it out of your system. But, you'll be disappointed in it in the long run.
Just my opinion.
Pete