Can't recommend X It and Tracy enough!! I have been going to X It for 8+ years and it never disappoints.
Every time you arrive, Tracy greets you with a warm welcome and the rooms are always spotless. Trace has an amazing attention to detail, will offer advice and answer any questions. She's also absolutely hilarious and I usually find the appointment goes by so quickly because we're always chatting and laughing.
If you're visiting X It make sure you book in with Trace!
Clean, modern interiors and professional, experienced staffers make this boutique hair-removal salon the least worrisome no-pain-no-gain experience you could hope to wish for anywhere in London (and beyond). Top rated for a reason.