All manufacturers have issues, BMW are having a lot of issues (mainly software) with their new X5 which was only launched a couple of months ago. Land rover have major issues with their cars.
Apart from the crabbing issue there has been very few issues with the GLC in the 3 years since its release, they should have sorted the crabbing and them describing it as a "characteristic" is unacceptable, hopefully the knuckles will sort this but at the moment they are not available for the 43 or 63.
2017 GLC AMG43 premium plus, night pack, leather, intel lights, 360 camera, side steps. = sadly gone
Now GLE450 Premium plus, Selenite, Black/White Nappa leather, Tech plus pack, Driving assistance pack, Tow pack, Off road pack, 22 inch wheels.