the kit I fitted for Ian (bargepower) was a gates belt x2 and gates tensioners, the water pump I can't recall the make (Ian likely will), but it was the metal impeller (as against the plastic version which can slip on the shaft)
Was a good quality piece of kit, as I expected having used Gates kits for the last 35 years without a single issue
I understand that Audi used Conti belts of which I would takes a Gates belt over Conti any day of the week
Just my opinions gained over a long time with cars, each to there own
Cheers,
Paul