I've been going to Senses for massages on a regular basis for the past few years.
I'll start by saying that Senses isn't fancy compared to Elmwood or Stillwater, but i could honestly care less.
I generally have Vince do my massage, and he is excellent.
The prices are VERY reasonable too considering its location, and you can use the great hotel pool if you want after your treatment.
I've never had anything but massages here so I can't comment on the esthetics side of things.
Overall, I'd highly recommend Senses to someone who is looking for a good massage in downtown Toronto at a reasonable price.
If, however, you're looking for excessive luxury this may not be the place for you.