The experience is unbelievable. At first you sweat in scrubs in Himalayan salt rooms, mud rooms, and even a calming cedar room. Cool off in the refrigerated room and finish up before your treatment with delicious Korean fare.
The staff at I Spa is incredible and are extremely nice. However don't get shocked, or get any ideas, when the therapists come out to work on you in black bras and underwear. If anything, they are trying to get close to your level of buck nakedness.