I watched the English version: Digimon Fusion. From a Digimon fan's perspective there's a lot of weirdness about this show. It doesn't really follow the same formula of everyone gets a Digimon companion, everyone needs to learn lessons and grow, the Digimon actually digivolve into cooler more powerful forms, etc. Despite being so different, I found it pretty ok. Mikey is probably one of the most responsible main characters of any Digimon series I've seen (especially compared to Marcus). He seems to think things through and actually look out for his friends. The supporting characters aren't amazing but they're not horrible either. I would say oneof the big disappointments with the show is the lack of digivolutions. Shoutmon doesn't actually digivolve until the end of the season. The rest of the "evolutions" are weird fusions that remind me of Power Rangers robots joining together. I can definitely see how it wouldn't be for everyone.
Another nock against it would be that none of the villians are particularly imposing. There's no Myotismon scheming for an entire arc or the Digimon Emperor creating his very own frankenstein digimon.
Overall, I don't know if I'd recommend it to anyone, but you could do worse if you wanted to watch a Digimon show you haven't seen. You could watch Frontier