RE: Edge 540
If you can keep the wing loading low ( to prevent the Edge from dropping a wing at stall ) and dial down the throws, plus get some help transitioning to tail draggers ( buddy box ) then yes, I'll bet you can deal with an Edge.
With some HELP at first.
Most of the Edge's I've flown have a tendancy to drop a wing and snap when they get slow, if you go beyond a critical weight.
If the plane is lightly loaded as with some of the light ply electrics, they do great.
FYI: The U-CAN-DO already mentioned in contrast, though a 3D plane, can land SOOOO slowly that I would put it into the hands of someone coming off a trainer, long before I'd recommend an Edge to that person.
The UCD is a VERY easy to land plane and a gentle flyer if you keep the rates way down... but like most 3D planes, it is so lightly built, that it will not last long in the hands of a novice.