They were fine at the sales stage and the glasses arrived quickly enough. However, the frames were built incorrectly and they'd somehow managed to put the arms on upside down! I have no idea how this passed their quality control, but when I called them I was told to return using pre-paid enclosures that came with the glasses. Fine, except they hadn't given me a returns label or an enclosure form. I have made four or five phonecalls to them over the last 3 months trying to get this resolved and they keep fobbing me off with 'it will be sent out in the next working week' but each time nothing is received. I asked for the returns address and if me just writing my details on some paper would suffice and pay for the postage myself - they were happy for me to pay the postage but wouldn't confirm the details I needed to enclose and just said 'use the form we sent you'. My last contact was by email when I asked to make an official complaint, had a template response saying about using the returns label and they didn't mention my complaint at all. They are absolutely disgraceful in their customer service. Naturally, the call centre is in India and you get someone who isn't interested in your call each time you phone them despite answering the phone saying 'how can I make your day better'. I will never use this company again.