Hi, I built one of these for the French Group build we did a year or so back but I'm afraid I can't find the build log of it on here anywhere.
All I can say is that I don't remember any particular bad points save one internal frame was mis-moulded. There were indications where the struts should go so these were drilled for pins before hand. The fitting of the lower wing is marginal at best so this was overcome by drilling the lower wings to take pins and fitting an ali tube across the fuse. I was very pleased with the outcome and bought another along with the Roden Nie28 . Unfortunately other factors have interfered and I have little time or the inclination at the moment.
They are not WNW by any means but with perseverance you can produce a very nice model from them
Regards - Tug