I have lived in London for 10 years and Anna at L’Spa is the best eyelash technician I’ve ever had. She is quick and thorough, and the eyelashes always look beautiful. On a few occasions they haven’t lasted as long as id liked, but overall they are usually long-lasting. I highly recommend her.
The waxing room wasn’t a room but instead an area separated off from the main salon with a curtain. It made me feel as though someone was about to come in during my appointment throughout, 
The wax was too hot, and given there was no air-conditioning or fan in the hot weather the wax would not cool down which made it a very painful experience. When I tried to ask my waxer to stop she insisted in continuing which was distressing.
They were 20 minutes late for my appointment and no apology. The place isn’t great - you’re not in a private room, just behind a curtain - and it was quite dirty with a huge pile of used waxing materials on the floor. The waxing itself was more painful than I usually experience.