I've been to Muang a few times and the service has always been good and reliable.
Following a neutral review and comments on being short changed in terms of timekeeping I'll throw in my 2 cents from my visit.
I called up in the afternoon and was told there were 4 girls available. By the time I arrive there was only 2 left and after requesting an hour I was led upstairs by a short middle aged girl who left me to get undressed.
After jumping in the shower I lay down and she returned. I asked for her name and she said it's Fern and she's been there for over a week. What followed was 30 minutes of lacklustre oily massage, not the usual deep tissue steel thumbed action you expect. I told her she could go harder which lasted 5 seconds before she continued waving her hands across my body. Plenty of CC swipes and resting her relatively ample bosoms on the back of my head as she massaged me. She then asked me to turn over and applied more oil on the body and over my flaccid penis. Asking when I wanted a happy ending, she proceeded to start stroking my cock anyway as I deliberated (i did find her attractive and thought I could do a better job at home).
She managed to get me hard and said £30 but I thought in for a penny and went in for £20 which she accepted. By the time she finished I was expecting a should and head massage (which is what usually happens), but she ran the shower, washed her hands and asked whether I wanted a shower. I jumped in for a quick wash to get the oil off and by the time I finished and was dressed, I checked he phone and only 50 minutes have passed since I parked up. I felt a bit miffed but couldn't be bothered to make a fuss and hastily made my way out.
One reason I haven't been back to Muang for a while was the lack of attractive girls. One my way out I saw the other girls on the sofa with a blanket and I wouldn't have been eager to see any of them.