We ended up in the pirate room last November (on our Honeymoon, arr) so that we could take advantage of free dining.
The room itself was just okay. The theming was certainly interesting, but I can't say we'd stay in one again.
The beds are full size and the mattress is a little thinner to accommodate the pirate ship frame. They were comfortable enough, especially after spending all day in the park.
The walls were as thin as they could be and the noise from the connecting room door was pretty miserable. We had the pleasure of listening to his father yell at his kids in the evening and the double pleasure of hearing him snore so loud through the wall that it felt like he was actually in our room. I had to sleep with headphones in each night.
The rooms are at the very edge of the resort and its about a 10 minute walk to the pool and food court. We had a car, so we only made the walk once or twice, but it wasn't too bad.
All in all, I'm sure they're great if you have a kid really into pirates. For a couple, there are definitely better options.
There are a few photos in our trip report:
http://forums.wdwmagic.com/threads/a-magical-spoxy-honeymoon-november-10-21-2014-completed.896693/
Feel free to ask any other questions you might have!