As you know, when it comes to every motor home manufacture, a few bad apples are made. I'm not saying you have a bad apple. Maybe a good one with a worm in it. Some manufactures make a higher percentage of bad apples than others. From all my years here on this forum since it's inception in January 2009, I've concluded Phoenix has a much better track record than most other brands.
There is another measuring stick....how a rig is holding up with age. You and Volkemon are on the lower end of that scale. In general, having a slide out is a contributing factor, though not in your case.

OK! BINGO! Slides condemned by Ron, that was the last square I needed for this sheet of Forum Bingo!

My 'fatal water issue' was caused by a bad windshield replacement. The rear corner damage from a careless operator. The bath skylight leak damage caused by ME not knowing mastic tape doesn't seal to RV self leveling sealant.

I hardly hold PC responsible for any faults there. And my slide doesnt leak BTW....
I think its a miracle that ANYONE can make a house that rolls down the road and stays together, that people can afford. We have been SPOILED by auto/light truck quality, how long ago was it that 100K miles from most cars was an occasion to throw a party?

Now if a Hyundai has problems at 170K people complain.
I know all the repairs and improvements I have made on my rig were done in a manner that would not have been feasible for a manufacturer. They would go broke. Hopefully I am blessed with the mental and physical ability to do it for some time.
When our barn goes up a roof removal will take place on the camper, and I suppose many things will be learned then. But until then, I am VERY happy we are still in the 2006. 'Apples to Apples' with other Class C's of that era, I feel PC made one of the best available. I hope that continues today.