It isn't cheap - I think I paid £275 for my course of 6.
And I hate to say it but crystal clear isn't comparable. My sister-in-law booked them (thinking they were the same as I'd had for my wedding - on my recommendation of micro-dermabrasion) and she was quite disappointed. I convinced her to make the slightly longer trip to my salon to have the same treatment I'd had and she was amazed!
The above article probably is right - as I said - you don't have it to go in and feel relaxed and pampered. Its really quite uncomfortable for the ten minutes it takes, and you do look red for the evening. But the difference it makes is astounding.
I too would have it once a month if money were no object - but sadly haven't had it since my wedding.