Owned my Iconic 2019 Countryman All4-S for almost 2 months and just passed 1000 miles. Loving it more every day.
Its not without its quirks though.
On my 2016 All4-S the seatbelts had a nifty little slider on the belt that would hold the buckle up and in place when the seatbelt wasn't fastened. That plastic sliding lock doesn't exist on my 2019 and the seatbelt buckle rests down by my hips when not buckled. I have to go fishing for it and its always pinched between the seat and plastic interior. Not a huge problem, but I like the design of the seatbelt on my 2016 more. Anyone else noticed this, and maybe done anything about it?

 

I dislike the not having a stop button for the buckle as well. It's annoying to have to reach down for it. I plan on adding them soon.