Product review (3 stars): Over all functionality wise is good and does the job
This vent is fairly well made and solid. Over all functionality wise is good and does the job.
Noise level is high in my taste but that could be subjective as i have no way to do an side by side comparison with other models.

Now, the down side, I have a lot of complains about the difficulty in installation process which is not easy at all for novice home owners.  Their Youtube video is very helpful but kind of oversimplify the reality for older home

The baffles are too difficult to put in .  I had to tried a long time to get them all in.  This can be quite annoying as it discourage more frequent cleaning later on.  I have had no such baffle installation problem whatsoever on the Z-line vent I have.

The chimney mounting is that straightforward either unless you have a perfectly plumb wall and ceiling.  The installation design does not take any consideration of mountain surface imperfection.  So I had to tried many times to align the bracket with the chimney body get a optimal position to get it bolted on and avoid big gap on the top.  This can be easily solved by the manufacture to add on chimney molding so that the installation is much tolerable on the wall and celling imperfection.  To be fair, I think most vents have this same issue.

There are minor sheet metal work imperfection that you can see the wrinkle on the of  front corners. Minor issue but shouldn't have happened on a $700+ vent.