My girlfriend and I have stayed at POR on both of our 2 previous trips together. The first time we stayed in the AB section and the second time we stayed in the MB section. We would have no problems staying in either side again (some prefer one over another, we personally don't). The grounds are really nice. When we stayed in the AB section, we stayed the week between Christmas and NYE. It is the busy time of year, but we felt like we hardly ever saw anyone. It was very peacful. The MB side is much more open than the AB side, with the fountains and mansion look giving a bit of a majestic feel.
The boat ride to DTD is nice, especially at night. Piano Bob is some good entertainment at night on site. For about $35-$40 they have horse drawn carriage rides at night that go around the grounds at POR which are very nice and relaxing. There are 4 seperate bus depots on the grounds, so it is never really much of a walk to get from the bus to your room at the end of the day. We usually head back to our room after breakfast to take a bathroom break then walk to whatever bus depot is closest to our room since the south depot (out by the main building) is usually crowded in the mornings and is often the last stop to get picked up (from our expereince) before heading to the parks.
In the end we would be staying there on this trip as well. However, we decided that we may not be heading back together for a while so we decided to stay at AKL. If my parents decide to take my sisters family as well as myself and my girlfriend after the Fantasyland expansion is finished, we will recommend POR for all of us to stay at.