So I've been looking for a new prime and this is an ideal focal length for my needs. The problem is that I've read far too much on the internet about the quality control issues in particular the focussing problems surrounding this lens. Does anyone have this lens and would they recommend it or should I be looking at the Canon 24mm f1.8 instead? For the amount of use this lens would have I can't justify the price of the Canon L equivalent. Thanks.