The problems seem to be coming back from the parks rather than getting to the parks. I've stayed there twice before with no real problems either coming or going, maybe once that I can remember.
My parents have been down countless times, probably around 30 times since 2000, and they always stay at POR. My Dad is somewhat impatient and he has never complained abou thte buses. They are what they are, just enjoy the trip and budget a little extra time in travel if you wish.
My wife an I lke getting up early and getting to the parks for rope drop, we then come back to the resort in the afternnon for a 2 hour nap, take a swim, relax a bit. We go back to a differnt park in the evening. We a re on the bus a lot and it has never been a concern for us.
We may be at a bus stop for 10 minutes at most, and there will be a family who shows up for 2 minutes and is already complaining abou the bus not being there or 2 buses going to MK and not one going to AK for instance. I've seen this happen a few times. If you let the buses bother you they will.
One thing I've learned working in retail is that 1 angry customer will tell 10 friends while 1 happy cstomer will only tell 2. You are going to hear far more negative reports about the buses rater than positive ones.
Sorry to be long winded, but the bus sysytem there is fine, and if you do walk to POFQ, it is a beutiful walk with a loved one and enjoy it, I've done it a few times, but you may get upset when that same bus you caught at POFQ pulls into your stop at POR next.