I have had mine for four years now, and I love it!
I thought twin boom trainers were a thing of the past, but look at the success of
the Boomerangs (and they dont even look as good as the Fivejet :-)).
I think the Spanish guys could have made a lot more out of that kit.
MW54 sized engines are a perfect fit and you could mount a 50 oz Dubro tank right on CoG.
Mine is light built an weighs exactly 5kgs without fuel.

Their homepage: http://www.arrakis.es/~rcpalma/Five-Jet/index.htm

Regards

Lars