I think the X has been a massive hit with people who 'have to have the latest one, just cos', but less of a hit for people who are concerned with usability, durability etc.
If the X had a metal body, touch ID, symmetrical screen (i.e. no notch or rounded off corners, but much reduced bezel size), then I think Apple would have a real hit with huge numbers of existing users upgrading to it.
yup -- the overall size, the notch, and the price need to be work out for the next 1 or 2 iphones. over $1k for a basic 64gb is crap