co-axial helis are great for just having fun in the house, they are super stable but get pretty boring after a while. a lot of ppl end up investing more into it thinking they can get it flying better but it's just not worth it. use it to learn on (if you go that route) replace the parts as needed, then when you've learned as much as possible from it move on to a single rotor. You can find CX2's out there that are worth $500.

you also CANNOT fly the cx2 outdoors in any kind of wind. if you search enough you'll find guys that have LOST their co-axials outside because the wind picked it up and flew it 100 feet away into the trees. the thing is only 12" long and weights next to nothing.