In no particular order:
The most unreliable new car I have ever owned was a VAG product. Not helped by utterly incompetent main dealers. Recovered more times in two years than the ex plod Omega that replaced it, and I owned that seven years and it covered twice the mileage of the new car in that time.
On which planet is fitting the timing gear at the back of the engine a good idea? And then selling the lump as a sound marine engine. With stern drives.
Had the misfortune to get roped into a couple of potentially straightforward jobs on next doors Octavia VRS. Thanks to the ridiculous way the various excess of plumbing is routed and attached, everything is either visible but inaccessible or accessible but not until you have pulled the air intake and half removed the fuel plumbing. And as for the rear discs, the vented ones require the calipers to be removed to get the discs out. Only you can't get to the calipers without removing the lower shock bolt and dropping the arm, only there isn't enough room to remove the lower shock bolt because it was fitted before the hub.
The 3.6 petrol sounds like a three cylinder diesel, and the injector clatter is so bad that you feel it as much as you hear it. Even inside the car.
Hit any larger VAG product a couple of inches behind the NCAP side impact point and it will probably tear the floor where the rear squab crossmember is welded to it. 2/3 door cars are less prone to this.
A set of injectors on the 4 pot diesel cost more than a new Omega engine.
Oh, and I don't like them. Which is my opinion, because that's how I feel about them. That's why it's called an opinion. Not asking you to agree with it, or even understand it.