With JD having kindly passed these on to me, I have been putting some effort into learning the system. Its actually not bad, and is, as JD had pointed out in his 'Unboxing' articles, a pretty standard 'IGYG' type system.
I've not done much with the Market Garden game yet since I was especially eager to look at Kasserine as its always been a subject of interest to me.
I should first mention that these game, and several more, use a common core system, and have, in fact, been in existence for several years. As JD has already noted, the components are not bad at all for what are, in fact, budget games.
I did find a few issues that perplexed me in the rules, but most of these seem to be due to translation from Polish, and a couple of questions I asked on their FB page were answered very quickly, although there are a couple questions that I have not yet had answers to.
Having said all that, I find it rather surprising that no errata seems to exist for the system or individual games, since errors and omissions there surely are, although no more that I've seen from better known publishers.
If and when I get some more reply's from them, I'll likely post an errata on BGG, although as far as I can see, the pages for these games are almost totally devoid of any posts at all. I suspect that this may be because the publisher is not at all well known outside of Europe. Until recently, I had not been aware of thier existence.
I shall report further in due course.