I've been going to Essential beauty kensal rise for a good few years now and just love it. Not only is the interior very pretty, and the therapist are very experienced and clean, I think they have the most comfortable rooms I've ever experienced. Very clean and tidy smells very nice every time I go in.
The therapist are wonderful and really friendly, love the way they treat me when I'm in the salon.
The products they use at the salon are very gentle, and good for all skin types love all the products they use on me eg. Dermalogica and Elemis.
Definitely check them out.