Just back from a 2 night stay in Congress Park. Honestly, it was perfect for our purposes....walking to Disney Springs... and we had a view of DS as well! It was so quiet I felt like no one else was even staying there. Seriously, I don't think we passed another guest in the halls even one time coming or going to our room. The bus stop was close and again - nearly empty every time (but we were not boarding at peak times). We went for Moonlight Magic and the line for SSR bus was by far the longest, but they had at least 3 buses sitting there after the fireworks. We got on bus #2 and did have to stand but I suppose we could have let people pass and wait to be first on the 3rd bus.
All that being said, I can see where we would NOT like it as much had we had another room location. This was the same for us the time we stayed at CBR. I didn't like it, but then our room flooded and they moved us to a better (to me) location and had I never been in the 1st room I would have not hesitated to stay again.
We have stayed in the farthest rooms at POP and POR and not really had a problem with it (actually like being far out at POR), but this place seemed seriously huge and (more importantly) hard to navigate. I feel like they could have more signage around because we felt like we were quickly / easily lost but that could be easily rectified if they cared to.
We walked back (after midnight but before 1 am) from DS the first night and were vaguely pointed in the direction of the walking path by security at DS. OMG. It was down thru parking lots and NOT the walkway we had come in on. We were so far and it was soooooo dark. I really have no idea how we made it back or if that was a real walking path....but I feel like maybe we started heading in the wrong direction at some point because there were almost NO SIGNS!!! And we did not pass a single other person the entire time.
Anyway, I'd stay again, but only in Preferred with a request for Congress Park.
ETA:
Another thing we noticed was that we really only saw families with kids in the lobby, store, and maybe a handful on the bus (again we were not getting on buses for park opening). I specifically remember noticing we were the only ones on the boat to and from DS that were not 55+ (possibly 65+). Our room had a playground and BBQ area steps away and we never saw anyone at all at either. This wasn't an issue of course, just an observation.