Absolutely terribly. (2005 Seat Leon TDI)
It handles like a typical FWD euro econobox, same as every other non GTI VAG based car. I dont know the technical phrases but if you corner too hard (not very fast in this pos) you end up straight on into the field infront of you, it has no grip whatsoever thanks to ultra skinny crappy 195 width tyres on 15" rims. Its steering is ultra over assisted, its gearbox is mishy mashy sloppy with a long throw, 4th gear has started grinding for no aparent reason. 2nd gear only does 50mph, and 3rd only does about 80mph, so backroads you are having to be all over the place between 2nd 3rd and 4th which slows progress.
Overall its just....crap. It does 50mpg though