weirdly i found the opposite, really good on fuel, over 100 miles out of a tenner, and only cost me 65 quid to add it to my ins as second bike, cheaper excess too than my 955i daytona.
great little runner, though takes a bit of getting used to revving it, my 955 revs out at 10.5k, the tt goes up to 13k odd
helps as well that we bought this one a 2000 on a 'w' with 24k on the clock for 500 quid ;-p