Product review (1 stars): Beautiful but an installation nightmare
Proline gave me a discount in exchange for an unbiased review.  Unfortunately, it's not good.  Cosmetically the unit is beautiful once installed, and no complaints about the performance of the fan.

All of the issues are related to the design and what that translates to for installation.  Let me preface as well, I have about 15 years of construction and maintenance experience so these comments are not coming from a diy rookie.

1.  The unit does not come with a correctly designed mounting plate and the correct type of screws.  Even after contacting tech support twice, twice they sent hardware and/or screws that don't fit the unit.  You will have to jerry rig to make things work.
2. The venting instructions/parts provided are not standard sizes.  You can't purchase 6 inch venting from your local home improvement store and make it fit without once again, jerry rigging the connections.

I could give more details but want to keep this review short enough for people to read and understand.

If you purchase this, you won't be happy with the amount of effort required to instal!