There are several 'brands' of this grinder, just with different badges and black plastic or grey.
Don't pay more than 50 something for it.
Don't force it – people on here have complained about the wheel not lasting.
Personally, I have the Holzmann version because they sell them 10 miles from me.
I thinks it's fine, but I only use a light touch as there's no cooling method, rather than shove it in like my life depends on the fastest sharpened drill ever.