I got started on my Concorde yesterday. It's the Revell kit. Went together better when I first built it a decade or so ago (was it that long ago!)... I'm having a horrible time in getting the bottom of the wings to fit properly into the top halves (the top halves include the leading edge of the bottom and the joint there is poor, to say the least...). This has made the engine nacelles fit poorly as well, but nothing that Milliput can't fix, I'm sure...
I'm a bit disappointed by the number of sink marks on the fuselage (as reported earlier), and a number of areas where the plastic has sunk a little (top of the fuselage where the locating pins are located, and mostly on the uper surface of the wings, over the engines... Again Milliput, putty and nail polish remover should help restoring a flat(ter) or rather more even surface. I'm going to do something about the main wheel wells as there's no 'walls' and one can see through the aircraft...
So, all in all, a bit disappointed so far, but the fit problems could just be me... I do not remember them the first time I built the kit... Revell'a airliners have greatly improved since the release of this Concorde... There's a BIG difference in quality between that Concorde and their later Airbus A330/340 and Fokker 100 I've also built...
Milliput time tonight!