I drive one for 300 miles.
The suspension is crap. Really crashy and unpredictable.
The gearbox is also crap. Rough changes, refusal to go in reverse and the ratios are ridiculous. The dsg version has the poorest, most delayed auto change of any car I've ever driven, it nearly throws you through the window when it changes gear!
And finally the fuel gauge is a waste of time, so inaccurate it's unbelievable. I had 30 miles left of my journey with a 1/4 of a tank, within 2 miles the tank showed empty so I panicked and had to pull over to find the nearest station on my phone. The tank lasted the 15 miles to the hill billy filling station then when I put £5 in it went to nearly half a tank!?
I wouldn't spend my money on one. It was supposed to replace the lupo/arosa - it's not half the car they were.
It's not a DSG - not fair to compare it to one either IMHO - it's ASG, so single clutch. From my experience of automated single-clutch gearboxes it's one of the better ones out there (try a Smart or Toyota one of old..). You can run it in tiptronic mode if you don't like its change points (or timing) - I do. Makes a big difference, especially when you've got changes in terrain as I'll happily concede it is reluctant to change down until the last moment when going up a hill - sometimes too late.
Fuel gauge - it does have a mind of its own, so we wait until the low fuel warning which is usually about 35 miles to go. To be fair, it's no more indecisive than the one in my Passat - that drops a notch within 20 miles of a full tank and below 1/4 does its own thing!
My wife is on her second Citigo now and she's a fussy sod to say the least. If there was anything slightly duff with it, she wouldn't have had another one. She complains when they move her seat when taking the car for a service..
Gearboxes do seem to get some stick - I personally think its a lot down to the thin oil they use to reduce friction but it doesn't seem to be the best unit out there but it is a tiny unit, built down to a price and power point.
Oh - and as for the suspension, it rides (and handles) better than the Fabia vRS I had at the time..