While we didn't enjoy the food at our PSB dinner, I thought the setting was lovely. I can definitely see why they've chosen Akershus for the PSB meals. From the outside, it looks like a castle - not as ornate or as awe-inspiring as Cinderella Castle, of course, but still "castle-ly" & therefore, "princess-ly"!
Akershus is more like a country castle. The inside is pretty too - very "royal" but an understated "royalty" if that makes sense. High ceilings, arched windows, stone walls, etc. It's also very spacious inside - not as crowded as CRT. (I was kind of surprised at how small the inside of CRT is.)
We sat in a little alcove by a window and actually had a more relaxing meal than we did at CRT - if only the food had been good!
But, to answer your question, I wasn't disappointed w/ the setting at all!
Of course, this year, I have an ADR at CRT & don't currently have an ADR at PSB - but that's because of the food primarily. (And the fact that there's just "something" about eating in Cinderella Castle.) However, I've heard that the other princesses may no longer be in attendance at CRT after the changes in February, so I may be booking PSB anyway - maybe for lunch or breakfast this time.