SuDam: Anyone been to this spa service?

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I keep seeing ads for this spa service in Korea on Ivan City and wanted to ask if any of my readers have visited. Looking at their webpage it looks like a little bit more of a spa treatment... prostate massage included? They definitely are targeting a gay clientele.
Source

Also, on their Korean website you can choose between different men and body types. Slim and handsome, standard, muscle... they have everything. 
So, readers, have any of you been to SuDam spa, and if so, could you share your experience?

~TKQ