Renee, I have the Kitchenaid KICU368SBL induction cooktop and absolutely love it. We switched from gas to induction a couple months ago and I can't imagine ever going back. It is so powerful and fast, and simmers excellent as well. Cleanup is a breeze. Way easier to keep clean than my gas range or the smoothtop electric range in my old house.
One thing though....its biggest element (3600 watts) is 11" and none of my pans (so far) is large enough to make use of the highest power output. That being said, the next largest (2700 watts) can boil water faster than anyone's gas range I know and makes cooking in my wok a dream.
If you're looking for more info on induction, "theinductionsite.com" is a great resource.
Most major manufacturers have an induction cooktop now, Kitchenaid, GE Profile/Monogram, Bosch/Thermador, Wolf, Viking, Jennair's is coming, Gaggenau, Electrolux, Kenmore Elite (rebadged Electrolux).
Hope this helps!