Join Date: Jan 2015
Location: Bregenz, Austria
Programs: AA, BAEC, Alaska, Flying Blue, United, IHG, Hilton
Posts: 2,950
HI Express is fine. I've had quite a few stays on my way in and out of MUC (in fact I'm here now, having just demolished a decent steak and a few beers).
Just avoid the overpriced shuttle and take bus #512 instead.