Yes! We love it - one of our cats was diagnosed as diabetic a year ago, so had to move onto a special wet food diet, and be fed twice a day. This massively pissed off our other cat who is a bit older and is used to free feeding on the dry stuff, and will not eat wet food. We had a few tense months, with lots of fighting, because we could only put her food down when we were around, but then she'd only eat a tiny amount, so she was always hungry and cranky.
We bought the bowl as soon as it was released, and after about a week she'd got the hang of it. We've spied our other cat sitting hopefully with his head over the bowl, but he hasn't managed to break in yet (and this cat can open the bread bin with his teeth, and lift lids off tupperware...).
We also had an issue when we first had the bowl with it not opening every time, possibly because her microchip has slipped. Customer service were excellent, talked me through some tests to make sure it was working ok, and then sent out a chip that boosted the range and that did the trick.
So yes, bloody expensive, but has totally been worth it.