Hilda laser level two lines from aliexpress 

i bought the Hilda 12 way version off Aliexpres well over a year ago... still accurate and good value compared to other brands.

Is it good then? Does it cast a line on the ceiling above it?

This is a piece of crap, don't bother wasting your money. Aliexpress won't help whatsoever if your laser stops working after literally 2 days.