I have done this shop and don't really like it because I hate the feeling of the foundation, etc. they put on my skin. I'm old enough that I don't wear foundation anymore - not only do I not need it because I take excellent care of my skin, it just makes my skin look worse, which I don't need. Also, the color of my skin is very difficult to match, and most makeup artists seem to think that yellow and brown undertones look good on everyone - not me.
Also, the last time I did this shop, the guy doing my makeup chose all the wrong colors for me particularly the eyeshadow, and I looked horrible afterward (frankly, like a hooker). I don't want to walk around the rest of the day looking like that, especially when I have other shops to do and other places to go. I would literally have to go home, wash all of it off my face, and start from scratch again. It's not worth it, especially considering that I'm very careful and picky about what I put on my face to begin with.
I don't care how expensive the makeup is, 9 times out of 10 it's no better than the makeup you can buy at any drug store. It's all made with the same ingredients.