I do. Had it since July. ABS only kicked in once when an SUV pulled out from an alley onto the main road. ABS kicked in, bike stayed straight. Probably saved my a$$.
Traded my wrecked 07 Ultra for a 08 Ultra w/ABS- Staying on a bike with emergency braking and full locked brakes was beyond my experience level. Practiced similar event with the 08 and bike came to an up-right safe stop. Little wierd feeling the pulsing in the brakes- just keep on the pressure and the bike stops just fine. I have no second thoughts or regrets, get the ABS!
I wasn't looking for them when I went from the RK to the new Ultra ... but can definitely say they are worth it. You are much more in control on any quick stops.