Hello!
I trained at Sitsongpeenong BKK for 1 month! I really enjoyed it. Everyone was super friendly & the facility was very clean. My room was cleaned each afternoon, so when I came back after training my 2nd session of the day I had a clean room & clean sheets. The food was Okay. The only downfall was it was practically the same everyday... Fried egg, curry w/ veggies & white rice in the AM (breakfast) and Chicken or pork curry w veggies, white rice & watermelon for dinner :) Always the same....
The trainers seemed to give attention to the foreigners & depending on someone's skill level adjusted their intensity. I was fortunate to be allowed to spar & clinch the thai boys. Seems they were pretty picky with who they let spar their young thai boys.
I enjoyed the scheduled training as Emma stated above. I've some gyms just let you hit a bag. They have a structure to their schedule so I knew what to expect on which day.
Overall I really enjoyed my stay there & I am going back in a few months for my honeymoon. There is a hotel/apartments nearby in walking distance. I will be looking into this place: https://www.google.com/maps/place/Pattara+Apartment/@13.6829375,100.6700045,17.17z/data=!4m5!3m4!1s0x0:0x2d4c7119ace7fef!8m2!3d13.6821029!4d100.6708138
I hope this helps....
Kate