Should I invest into the x12 line?

I'm currently looking at a few of the 12v tools by parkside and on one hand see that they seem incredibly well priced even at the regular prices and also I'm sort of missing a few tools in a compact line which now with the new brushless tools seem better than ever. So I know many of you hear swear by many 12v tools but I wanted to see how you'd overall see the lineup

Infos on my current setup: with cordless tools is already complicated which I don't mind (einhell, CAS, Metabo, ferm ax Power 12v) and I think I'm too far gone from a reasonable amount of batteries.