Background:
I have been flying RC since I was a kid (20+ years on and off). I have some experience with power planes, RC gliders / slope soaring and helis.
I have just jumped into RC jets with a 1/8 scale Tamjets F-16 which is powered by EDF. I use it as training wheels for turbine.
Opinion:
So far, flying a jet is not that different from an heavy prop plane / warbird. It feels different because there is no prop to generate instant lift / reaction but it is totally manageable.
However, landing it is very different from anything I have been doing before. During landing, the gas controls altitude and elevators control speed. This is not very intuitive. This feels closer to helis than a prop plane. Further, the extra wing loading amplifies any mistake by a lot. A simple bounce during landing usually means big repairs.
I don't think that flying jets (at least Tam's f16) is difficult. But it is different enough to present a rather steep learning curve.
Arnaud (back to repairing these LG rails

)