There are 3 kinds of "jet" models,

turbine powered models that use actual turbine engines.

ducted fan models that use a piston engine driving a fan inside the aircraft to simulate a turbine

prop power planes that look like jets, but have a conventional piston engine and prop in the nose or tail

Oh, and slope soarers, so that's 4.

IMHO none of them are suited for beginners.

A turbine powered model like the one pictured above could be flyable, but turbines aren't exactly easy to run. If you have a bunch of turbine guys near you that are willing to help, then I'd say maybe. If you are like most of us, and turbines are rare, I'd say avoid it. And then there is the cost, they are big $$$, and have a tendancy to catch fire when they crash.

Ducted fans require a lot of engine know-how to make run right. They are nortious for flying fast and frankly are less suited for a beginner than a modern turbine.

Prop jets are as easy to setup as any prop plane, but the designs are not going to fly trainer-like at all, as CRFlyer pointed out.

I don't fly slope, but the "power slope" guys seem to like going fast, so it looks rather un-trainer-like as well.