hello

i am flying 40-60 sized airplanes and want to move up to a 1/4 scale 3d aircraft.
i think that the dave patrick edge 540 is a good choice for a 3d machine.

1.how does this plane flys?
any bad habits?
how are the 3d preformance?

2.what engine should i use?
i am thinking about moki but i dont know if 180 or 210?
maybe o.s 160 fx is a good choice too?
is it a good step to buy a nitro engine for those big airplanes?

please help
roy