I went for a Iyashi Dome session at Greenwich after my friend recommended it and I had a voucher, so only paid £28
There is a shop selling food/drinks and cakes downstairs, then a small seating area on the 1st floor then treatment rooms above.
The session itself was quite good, it got quite hot and I did sweat a bit, but if I were to go again I'd ask for more heat.
The only thing I found disappointing was the lack of the personal experience that I would expect from a spa.
I recently went to get my eyebrows waxed, though the staff and facilities were lovely. The treatment was sadly very poor, completely waxing too much hair off and completely changing the shape of my eyebrow. Sad to say I wont be going here again.
although i quite enjoy the salon and its 'organic' vibe the manicure wasnt done to a highest standard and its the second time already. unfortunately though as i quite liked the manicurist but the manicure just wasnt that great - lots of little details missing