Having tried most of the male hair removal places in London I can safely say that Karl is by far the best!
For a start sugaring is far better than waxing - less of reaction to the treatment and less painful. Karl is calm and welcoming whilst being super quick and thorough with the treatment. All that and the prices are cheaper than the other sugaring venues in London.
I would honestly say if you're currently getting a wax treatment anywhere else, switch to a sugaring treatment from Karl.