Re: recommendations for good eyebrow threaders in West London, and a bit of a rant!
I concur with stoppit, for eyebrows it's Shavata all the way :) Go to her Brow Studio on the 5th floor of Harrods.... i have very fine hair anyway, so re-growth is every 6 weeks, but i go to Shavata personally.... £34 if you want her, £24 if you want one of her team.
Vaishaly Patel is also pretty good, her place is in W1, Paddington St. She charges £45 and it's £30 with one of her team.
I know it sounds pricey, but if you get one of these pros to make your eyebrows look immaculate, then the upkeep is left to you... you don't have to go all the time, maybe twice, thrice a year...
And they do say that your brows are the windows to your eyes, so you want them to look as good as possible ;)