Theres nothing wrong with Mcpherson struts and LSDs, that Q2 vid is promotional, of course they are going to talk up the Alfas strengths and rubbish competitors, end of the day a lot of good cars do very well with a mac pherson setup and funky diffs like the renaults and fords plus lancer evos to name but a few. I wouldn't give it a second thought, get it fitted and form your own opinion, its not as if the GTV is lacking from steering kick back just from the torquesteer whats a little bit of diff action going to do to worsen it, not much i'd reckon when stacked up against the traction benefits.