Completely agree, same goes for Hyundai. At first they were cheap nasty Korean brand, then they came along and started building some really good cars, the i30 (iirc) is a genuine contender for the Focus now.
Also remember that if it weren't for Hyundai (with their then-unheard-of 5-year warranty) and then Kia trying to better them with the 7-year, we'd all still be being mugged off with two- or three-year warranties on cars which should really be built to last longer than that.
The i30 is actually the same car as the new shape C'eed. Im sure some will disagree with me on this but the new shape C'eed build qulaity is on par with BMW build quality i would say. Everything feels so solid and its very very quiet even at 80 on the motorway. Ive got the 1.6CRDi version and its fairly pokey (126bhp iirc) for a 1.6 and is epic on fuel. I brimmed it on friday (£65 from almost empty) and have done 225 miles and its only just touched 3/4 of a tank from motorway driving.
Dont confuse it with the old shape Ceed though. We have a lot of them at work and they kept blowing engines, locking people out of their cars and were generally built like s**t. Terrible terrible cars!