In short, great value-for-money! Just 4$ for the bomber, 5.50$ radar station and a flak cannon for 2.75$ (plus a free saucer). I'm not a fan of the "base", but as the terrain pieces will be integrated into islands/hills they are not a problem.
From the size comparision pics you can see that they fit the Spartan Games stuff quite well and I'm sure would fit to other 2mm or 6mm ranges as well (they could go for Scifi, Weird World War, etc.). Several of those buildings could be great targets for "Check your 6" style fighter games.
