I have had my 400X for about a year. It is one of my favorite planes ( and I have 11 or 12 planes.)

These planes are easy to build. If you have a dremel and a straight edge ruler the groove for the spar is about a two minute job - literally. Measure. Set bit depth. Align straight edge with where you want to cut. Cut. Done.

Sedunster already mentioned the durability. I have stuffed mine several times. Once I dove it so fast that it started to flutter and pitched the battery out. The battery was a total loss.. the Zagi floated down like a piece of paper.

My buddy flew his straight into the street. Destroyed the canopy and smooshed the nose up pretty good. We taped on a new canopy and went flying.

The 400x is well worth the money. Trying to piece together all of the equipment necessary when you purchase one of the other less complete kits from Combat Wings or other companies wind up being the same price (sometimes more).

Check out http:www.yourzagi.com.

Thanks,
Ted