Got these a few days ago, and just to add a few of my own thoughts.
- The van really is rather nondescript, and the grey doors clash horribly. Would have looked much better in yellow. The same colour problem occurs with the plane - odd mix of red, yellow, light bley and dark bley - although it sticks out less there as a lot of the dark bley is the underside of the plane, which at least makes sense compared to having the back doors of a postal van painted a completely different colour!
-- 2008 seems to the be the Year of the Sticker, from small sets right up to the large ones. I got the Cargo Plane and Truck & Forklift as well, and the amount of stickers is just unbelievable. Compare the Cargo Plane with the Passenger Plane from 2006 - absolutely everything in the former is stickered, whereas the latter at least had the tail, nose cone and fin printed. The truck is just as bad - 13 or 14 stickers on the whole thing (can't remember exactly!) - it's like City is the new Exo-Force. More annoyingly, the sticker for my mail van was misprinted so the colour red bleeds over into the white - misprinted stickers is a trend I've noticed increasing (as opposed to crushed and mutilated stickers, which remain fairly constant :) ).
- The minifigs are nothing to write home about. I'm getting very sick of (a) men with beards (b) men with sunglasses © men in caps.
- Overall, though, the plane is quite cute and a nice, quick, classic type build. These two smaller sets are at a good pricepoint for casual buyers and, while not revolutionary, do the job well to expand the City range and to flesh out the Cargo narrative from post box to van to plane to cargo plane and back again!