I tried the Squeem out at a local retail store as I was trying on clothes and I must say, this is one of the only shapwear garments I've tried and it was COMFORTABLE! I did not feel confined at all, I felt very relaxed and saw the results. I would definitely purchase a Squeem!
They really just smooth you out. Personally I prefer either the full body ones or the ones that go on like panties. These always feel like the ride up throughout the day and have a tendency to cut you off in the middle.