My first was a big Kyosho Kit I must have bought 2 kits by the time I got it all pieced together (this was before the internet!) Once together I got it off the ground after sweating it out, and as it drifted towards me I freaked and I slammed it...
Captain Drone has been reviewing a good few of those recently. Here's one he liked for beginners...
And here's one that scared him for those who have skills !