We suffered from a microwave with built-in vent for many years before finally deciding to upgrade to a real range hood.  After looking around we decided on the Hauslane based on specs and reviews.  I am so glad we bought it.  It works great, is super quiet, and looks wonderful.  I love how much power it has.  Also, we lost the tray for the autoclean function their customer service was great.  They quickly sent us a replacement at no charge.  Stop deliberating and get this one.