Einhell are based in Germany, they design some stuff there (but I think all their stuff is made in China or otherwise sub-contracted) and in addition, they also seem to "badge engineer" some stuff (i.e. buy up some tool or other, then simply put their name on it).
In other words, their tools are like the Curate's egg - good in parts.
In practice, that means you have to be careful, VERY careful. I've had a total of 4 Einhell tools. One was absolute carp and after a LOT of fiddling and faddling, ended up going in the bin - a belt/disc sander that could NOT be made to work properly. Another, a scroll saw was awful, but after a lot of faddling, could be made to work "OK-ish". With appropriate caveats and explanations I gave it away.
A 3rd, a small table top bandsaw, COULD be made to work, again "OK-ish" and I still have it (though it's scheduled for replacement with a better machine - that will NOT be hard, apart from finding the funds)!
And the 4th is my Chinese mini lathe which was not made by Einhell, but by (I think) Red Dog, apparently one of the better Chinese-made/designed jobbies. Apart from cleaning out casting sand, fettling for casting burrs etc, and generally re-assembling it "properly", it works fine - within the limitations of any of these little Chinese mini lathes.
In short, definitely NOT "professional" tools, but built to a price and aimed at the hobby/DIY market.
IF you can get a item in your hands and look very carefully at it, you could, maybe, get a value-for money tool - e.g. my lathe, and I understand, their "new" range of drills, then OK. If you can't get eyeballs on before buying then based on my own experience, I'd leave well alone.
But as they say "your mileage may vary".
HTH