i've been there a couple of times; not the one above the lan shop but the one beside the mechanic shop. it started out pretty decent; at most is a hj, then it progressed to a bj and then fj. the last time i was there was in dec 2010...now when i drive past the shophouse, seems like it's gone. door is shut. wonder if it's still operating behind closed door...hmmm...
with regards to the place being smelly and what not, i wold certainly agree. the standard has deteriorated quite a bit. screw the massage, you'll only get a 5-10 min weak massage and they'll be eager to ask you if you're interested for any extras.
verdict: screw it unless u are super desperate. cheers bros!