Product review (4 stars): Nice hood.  Had a few installation issues.
This is my first range hood, so I have nothing to compare it with.  But on day one, we had to make a call to customer service because after install, we noticed an incredibly loud rhythmic sound.  It was like a jet engine gearing up for take off.  The sound did not vary, even when we changed the motor speed.  It turned out that some part had come loose during shipping and my husband was able to figure it out and fix it.

Also, there was an issue with the size.  It says it is a 30 inch hood, but the actual measurments are about a bit shy of that.  Our contractor was concerned because he usually mounts hoods with additional screws going into the cabinet stiles on the side so that the hood is mounted at several points.  In this case, though, the 30 inch opening in the cabinets was too big.  Husband to the rescue again.  He made a pair of stainless steel bushings to take up the extra space and now the hood is solid as a rock.

Finally, like another reviewer, we are going to have to use a dremel tool to adjust the chimney holes.  They don't line up.

Having said all that, once we got the hood installed and functioning properly, it seems great.  We roasted a batch of coffee on our stove last night and it makes a HUGE amount of smoke.  The hood sucked most of it out while we were roasting and then cleared the air pretty quickly afterwards.  I definitely could see a big difference from when we didn't have a hood at all and would just open a window.  (The dark ages!)

Once we figured out the rattling part, the motor was relatively quiet, too, especially on the lowest setting.

I called customer service about these concerns and they were very responsive.  We didn't end up needing their support, but it was great that they were willing to help.  They were very interested in my feedback and it sounds like they are going to look into some of the issues.

All in all, I think there are a lot of things to like about this hood.  It seems to work very well.  The form factor is good.  The fit and finish are at least as good as hoods that were much more expensive.  The installation issues aside, I think this is going to be a nice addition to our kitchen.