It's true, world airport two does have "moving scenery." I use that term VERY loosely. It looks cool in the shots, but as far as practicality goes it's not that great. The taxi-ways don't actually dock accurately for your aircraft. I've tried everything from default to addon to freeware aircraft and the jetway usually ends up pushing through the side of the plane! It doens't make you crash, but it's still a nuisance. Also, that feature only works on certain active jetways at every airport, and the ones that are active are usually extended anyway.
The service armada is similarly a nuisance. They added more vehicles than necessary, making the plane look extremely cluttered when they're deployed. It also only appears in VC mode, 2d panel, and spot plane view, but the spot plane view HAS to be set at a fairly close distance (specified by the manual) to see them. I find it much too close to be worth it, so frankly I disabled this feature on any airport I could.
The rest of the addon is superb though! =)