It is in Petchuburi, we stayed there in September and it is very reasonable, if you stay 5 nights you get a Suite Room which has a lounge area as well. It is not close to Sky Train but Petchuburi subway station is just around the corner and one stop away from that is the Sky Train at Sukhumvit.
We found it to be a great hotel, only three floors but with a pool and good brekky.