I will defend VW.
I have rebuild a ton of em. I can say there's not another thing on the market that is so infinitely rebuildable.
They were a thing up in here for a while. Sawyers loved em. If you rebuilt one for performance, baja'd out to the nines, with tall pizza cutters for tires, 9 out of 10 would be bought by a sawyer.
The main thing that sucked about em that was not easy to fix, or make better was the transaxle. Even the bus axle was weak, and at the time there were no real options - transaxles were not a common thing.
But now there are a ton of high performance transaxles that might be adapted.
I did a couple conversions to a subaru motor, but now I reckon that is pretty common.
Makes me want to be back in that game.