I have been driving a Swfit Zxi now for about 20 months and in general have found the vehicle to be sturdy.In the begining everything was working as per my expectations, everything was fine.
But after about 6-7 months and till date I have had complaints about the rattling noise that keeps coming from the doors and also the Air-bag box on the co-passenger side makes noise.
I am not really very sure if these problems will ever be recitified by these service station people. Apart from these couple of issues, I have found the vehicle to be good in terms of mileage, good grip even at speeds of 160 km/hr (no shaking or anything) and pickup
Yes forgot to mention one more issue, the AC, whenever we start it makes a lot of noise kind of bang and as I have read in some other comments, it does make noise when in use