I had a Clarins facial and my skin looked lovely. But then they went in for the hard sell/scare tactics and I left with a 'prescription' of treatments/products to deal with all my 'flaws' feeling a bit pissed off.
I had te pregnancy treatment and it was amazing! I also have the tri-active facials and they really really make a difference. In terms of the hard sell I never have had that. They offer products to use at home, but so will any spa. But it's up to you if you don't buy them. I have never bought anything I don want. Just say "no thank you, have you got a sample" and they are very pleasant and don't mind at all! (I have also gone back and bought a few things after samples as they were very good)