Harriet72 - I am definitely not promoting Golden Stitch, I live in North London so its just as convenient if not more so than Marylebone for me.
Alterations Boutique have done loads of fake comments on this board, its pretty transparent once you look at them. I would even hazard a guess that your own comment is such given its tone.
I've just given my personal experience, they were very rude and I would never recommend them.
Anyway as it transpires, I am not completely happy with my experience so far at Golden Stitch either though they are 10000% more personable than the lady I dealt with at Alterations Boutique.
For me, the search continues for the perfect London alterations.... has anyone used Elitealterations? They come out to do fittings at your home. I've put in an enquiry and they were recommended on LoveMyDress but interested if anyone has firsthand experience?