Firebirds teach you how to fly
And once you learn how to fly using a firebird or similar type of plane and want to move on to another model be it either electric or glow YOU will have to relearn to fly because the firebirds do not fly or respond the same that "normal" model planes do.
You think because its only 100.00 bucks that its worth it but if you took that 100 and put it towards a "real" model you will have more "fun" and prepare yourself for your next model.
Alot of questions come up about your second plane, the answers here usually go something like this Sig 4 *, Tiger II, etc.. I can tell you that if your first plane is FIREBIRD then your second better be a trainer!!
If cost is an issue try to buy used.