I actually have a set of Pretoria's on my GTI. No issues but yes if you hit a good sized pothole doing 80 you make crack or bend the wheel. Same goes for shitty cast wheels though.
First...the 18" Pretorias on my new Autobahn are STEEL. The 19" Pretorias...stock on all R's...are magnesium alloy/aluminum. VW tells me "that's how it is and no you can't buy VW manufactured STEEL 19" Pretorias. They don't exist and never will. Next question?" The second I heard that...I threw out the 19" Pretoria idea and had them install the 18's. (The stock rims on any version of the GTI in '16, '17 and '18...PUKE! They look exactly like the blades inside yer moms blender!)
The APP. I bought it. And had to make a claim and the fucking car wasn't even 2 months old. An asshole dump trunk hauling gravel...you know what happened next. BANG!!! Chip...right down to the bone! To be polite...VW Canada have no real issues with repairing leather, replacing a tire, repair/replace a wheel...but when it comes to paint/lacquer...they are real DICKS about approving the invocation of a claim. DOWN TO THE PENNY!
Watch out w/where you take a PAINT claim to. If that particular shop is like...a dollar too expensive (for VW) they'll tell you to shop around for estimates before they approve a repair under the APP insurance. ALSO, in Canada...yes...it's 0 deductible...BUT...you only get a TOTAL of $1000. INCLUDING ALL TAXES for the entire 5 year 4 star plan. And one tiny rock chip cost my plan $205. I now have only $795. left to claim FOR PAINT/LACQUER...for the next 4 years and 9 months.
Even if I HAD read thru the APP insurance properly and noticed that ridiculous limit for 5 years...you can't break up the plan. Or amend it to add more coverage. 5 years...$1000. max! As I said, the rest of the plan is pretty good actually.