I have an 03 400 ACT, love it, it rides just as good, or better than IRS. The axle on this thing articulates like you wouldn't believe. Looks like a modded Jeep on the Rubicon trail. I couldn't believe it until I seen the wife drive it through a nasty, rock filled "trail". I was behind her on a old 350 Honda, half the time with the tires in the air. The suspension is adjustable all the way around, and you can set the tension the same as you'd set an IRS machine. If I was to buy it again, I would probably get the auto. The motor really wakes up after 4-500 miles like they say on here. As for resale value, I suppose it's on par with everything else, but if I do get another bike, it will be another AC, and I'll keep this one as well. I don't think a lot of people know how the ACT works, or have seen it in action, but the few guys that were running behind the wife were impressed with it. You used to be able to get a 500 ACT, but I don't think this is the case any longer. That would be my next bike. I hope AC doesn't abandon the ACT design.