Well, yes, probably a bit much spiritual mumbo-jumbo going on there,
but when you get someone who knows what they are doing, rather than a rub-and-tug type massage... yeah. Hell yeah.
I'd recommend Lavenders, in the city centre (Nunn street near Monument) or 'Best Thai' on Wesgate road just up from all the bike shops.
Lavenders is more 'legit'. Ask up front once you're in the room about how much 'extras' are otherwise they won't oblige (for whatever reason). Best Thai are more about the whole full-body thing specifically. They know that's probably what you go there for, but you still have to pay the extra obviously.
If you go to Lavenders ask if 'Coco' is in. She's the manager and gives a great tantric/full body massage as well as a proper hard massage if you need it. All the others girls are good though. I really wouldn't get a regular massage at Best Thai. They're not all that great, and use a bed. Lavenders use a proper table.