Not sure if you were asking me or one of the other guys or everybody in general, but I can't speak for the power difference yet, because there's still snow on the lawns here, riding weather might not come for a month yet (sigh)...
But the ergonomics are sure different than the '98 I had. Much more aggressive, forward riding position, and the bike is some 30 pounds lighter and with lower center of gravity. It feels a lot racier.
I'll let you know about power differences, hopefully within a few weeks.
"Keep yer feet on the pegs and your right hand cranked."