Product review (2 stars): Checks all the boxes for features, but ultimately fails QC
I've tried three exhaust fans (two from BV) in my attempt to find an more economical alternative to some ludicrously priced fans sold locally (Pacific / Sanyangpai / Pac-Air / Sakura).  These options start at over half a grand for the basic models and run into the four digits.

Unfortunately both BV products I've ordered I've also returned.  This product checked all the boxes in terms of functionality, high CFM, stainless, "Euro" design removable grills, led lights, the works.  However on receipt one of the two fans was not balanced correctly and would grind against its housing if turned on.  I'd imagine it would eventually shatter if left running.

The two star rating is due to quality control, as the other BV fan had a grill that could not be unlatched.  I'm sure with enough attempts you can end up with a usable product.