Personally I wasn't prepared for the fuel economy coming from a 1.3 diesel punto which easily did 50mpg around town.
While the 500X is an excellent upgrade, I have found a few issues that I will have to deal with. The boot ain't that big. Mine is the lounge with a full size spare wheel so takes a lot of space from the boot. The radio & satnav reboot when I least expect it and whilst it it a pain, I can live with it.
Oddly, the trim on the right pillar kept getting pulled away when I got in the car, seems odd there is a seam right at the level of the seat, fixed this with some double sided tough tape.
Ride is rather bumpy, that's just down to the thin tyres.
Occasionally the auto brake won't release when I try to drive off at lights, bit of an embarrassment really.
It is much more comfortable than the punto, better high seating position.
The rest of the toys work well.