I've built several over the years and have enjoyed them. They are not in the Wingnut class but they are good solid kits. I'm presently working on (another) of their DR.1's and, like the others I've done it builds up nicely with a little extra effort and a few A/M additions. Their Albatross D.III is in the same category and their Seimens Schuckert D.III is a great model. The prices are extremely reasonable as well. (But "bin" the decals on all!!) They were the "go to" 1:32 WW.I aircraft models before Wingnut Wings debut, and now they will again gain popularity give price and availability.
Cheers,
Lance