Einhell have been around for a while in the U.K.
They turn up quite often as almost the “house” brand in DIY shops and suchlike.
Seem to be the tool for someone who can’t quite run to Ryobi.
My only experience was with an angle grinder. I had someone working for me who needed the tool for one job, so I bought the cheapest, which was Einhell.
I kept it afterwards, as I thought a crappy grinder would be useful for cleaning rust or suhlike, but I was wrong.
The vibration from the thing was awful, you couldn’t feel your hands properly after 10 mins using it. The noise was horrendous too - you got ringing ears even with ear defenders.
The “overmold” rubbed off on my hands, and the switch was dangerous - awkward to turn on and was even bad to turn off.
Maybe if you got a sander or drill or suchlike they might not be too bad, but I wouldn’t touch anything dangerous like a grinder or circular saw.
I notice they have rebranded and changed all the colours. They might have improved the tools, or might not?