I have that engine in a VW Rocco. I dont really know what to say. Its a very linear power delivery, I cant tell when turbo kicks in or when supercharger comes out (yse its done on electric switch at 3.5k i know). Its very fast for a 1.4 and pulls 80mph at 2k in 6th (I have a manual). There seems a glitch n the map at low revs it can be a bit werid at times, it went in for its 10k service and they said they remapped it which was good, however didnt fix the problem (In fact I havent noticed any difference) but at least they admit their have been a few complaints I guess. Feel free to ask anything and I will try my best. I got 47mpg average on way to work this morning droping mum off on way, once mum got out I got it down to 37mpg by the time I got to work.
Engine sounds amazing! Better then mate ed30 golf and even he admits that! Its fine on motorway (Just read what someone above put) so no idea where they get that from.