Hi Kurt,

Trust me, its well worth the 400$!!! I will also expand on the pros and cons.
Pros:

Pre joined fiberglass cowl, wheel pants and spinner with almost no visible seam
Very thick curved fiberglass landing gear and rear wheel landing gear
Excellent wing jig( building perfectly straight wings is a sinch)
Amazing cut parts and veryyyyy easy assembly
Perfectly cut fiberglass control horns and accesories

Cons:[:@]

Very bad instructions. They were written by a pretty famous german called Olaf Sucker and they are not very good even if you understand German
Some sanding is required on part openings because the round cutting bit leaves a bit of an arc at corners and this causes some square parts not to fit properly

My main tip when building this plane is to take your time especially with the fuselage. The main thing that I would do next time if I was building this plane again would be to make all of the parts fit loosly with no stress. In the fuselage this is very important because most of the bulkheads fit into the sides very tightly. When you assemble the two sides together, this causes the formers to bend very slightly and this puts and unwanted force on the fuselage that makes it want to twist. So basically let all of the partsfit in loosly because this will make the fuselage perfectly straight and later you can fill it in with some light weight filler.

Thanks

Sebastian