I just checked out of POR today. I've been to POFQ a bunch but never Riverside because I was afraid of the size and busses. I was right to be afraid. So. Much. Walking. I got lost every time I came back from the parks. Always got off at the same place but the directional signs are vague and hard to see at night. I was very uneasy walking around by myself at 1am while being lost for 25 minutes.
The room itself was great. Very large, nice bed, great bathroom/shower. I also had two bad experiences with the food court. The first was with the make your own Pasta station. I made a chicken alfredo thing. Chicken was barely cooked and the Pasta was hard. Inedible and I brought it to the attention of the CMs working the station. They were offended and didn't even offer to make me another one. On the second day I saw some of the longest lines I've ever seen in a WDW food court. I've stayed at All Star Sports during Easter and it was less chaotic than a random Friday in September at POR. I have up and went to Epcot for breakfast.
The busses left a lot to be desired to. I averaged 40-90 minutes to get to a park. Yesterday morning 8 Animal Kingdom busses came through. Zero for Epcot. When an Epcot bus did arrive it was basically full and only a handful of us were able to cram in. Coming back was always much faster for some reason but equally as crowded. The resort itself is gorgeous but I doubt I will return. I really liked the room but I'll stick to resorts with less busses, is easier to navigate, and a more functional food court.