100 HP and 400 lbs. wet makes for a good power/weight ratio. Similar sort of bike to my 2009 Triumph Street Triple R. The big difference I notice is in low and mid-range power. The Triumph engine was detuned a bit from the Daytona version, and as a result has an amazing amount of low and mid-range torque. The Aprilia makes it's power higher in the rpm range, so I find myself using the shift lever a lot more when riding it. But it is a great bike for spirited riding. I plan to keep it until I'm too feeble to enjoy it, and then keep it a little longer anyhow.
Ken