Yes, been very pleased with ours.

Even more control than gas and a darn sight easier to clean.
Not all metal saucepans will work. Nothing aluminium will be suitable and a lot of stainless steel stuff won't work either. Check your pans with a magnet first. Magnet sticks? Chances are it'll work. Not an issue with us as we got a special offer with a nice set of pans thrown in.

As to efficiency.. Well, you lose a lot of heat around the side with gas but the energy is a darn sight cheaper. With an induction hob the heat is split between the bottom of the saucepan and the drive electronics, so you lose a little, but not a great deal. At the end of the day, cost of cooking is insignificant anyway so swings and roundabouts.
The main advantage is that the glass stays pretty much cold, or at least, only gets a bit of conducted heat from the saucepan, so if something spills it doesn't burn and the glass doesn't tarnish. You can just remove the pan, wipe the surface and put the pan back on.
Ours has decent sized rings but you have to remember that the heat is pretty even of the whole area of the ring, unlike with a gas cooker, so if the ring is a little small you still probably have more even heating than a gas hob.
A decent induction hob is a
lot more expensive than a gas hob, though. I think it's worth it and wouldn't use anything else now. YMMV.

Oh, and for the record, it is excellent at making custard as the extra control means you can avoid it burning on the bottom or boiling over, and, if it does, it's no issue.. It tastes.. Hmm. can't remember what it tastes like. Might have to go and make some.
