I too have used the TW ICE with great results. I decided to get the detailer spray they have as well and it looks very good. I'll add that because I noticed some slight swirls from when the dealer had it and used the TW ICE Clay Bar and that cleared up any of the swirls.

But, I've already got a very good finish as the car is new so I don't know that anything wouldn't look good. Still, I'm going to try Meguiar's sometime to see the difference.