I'm paying about £32/mth for £500k cover. It put about £5 on the cost.
I was asked for hours (I plumped for about 26) and type of flying (non aeros...for now).
Also I had to tell them whether I've had any medical procedures, one of which was ECGs, so put down that I'd had an ECG for my medical. It went to the underwriters for approval but that's probably standard.
I think it's with Legal & General.