Good Morning Christine!
I am a big fan of the POR/POFQ resorts. LOVE THEM!!! If it had ever been to me I would never have stayed anywhere else on property. Not even if you had given me a free room on the concierge level of one of the Deluxes. With that being said........Last fall we were planning our trip to WDW, at POR again. But after our 4 yr. old saw pictures of POP (specifically Lady and the Tramp) she asked if we could stay there next trip. After much discussion, we decided to split our reservation and stay the first few nights at POP. I, like you, had heard a lot about noisy plumbing, noisey neighbors, slow busses, yada, yada, yada..... So going into that vacation I wasn't expecting to like POP, just merely biding my time until moving to POR. So.....imagine how surprised I was to enjoy my stay at POP. Yes, I admit it I loved POP Century. Now it is nothing like POR/POFQ, at all. But we loved the Kitschy(sp?) feel of the place. It was as fun, as POR is tranquil. We had none of the issues that everyone complains about. Well, maybe we did hear a few toilet flushing, but it certainly didn't bother us, or keep us from sleeping. It is a cool resort, but it is certainly no deluxe. I think to enjoy POP, you have to see the humor in the resort. My parents (50's) loved it too.
I say stay at POP, save your money to spend on other fun stuff, and just enjoy being at WDW. Go with a great attitude and a sense of humor, and you will enoy yourself.