Product review (5 stars): Great hood if it's like the old one!
Five stars IF this hood lasts and works anything like the near-identical hood it replaces!

Warning:  this hood is designed for through-to-the-roof venting and is kind of tricky to retrofit for an amateur DIY-er. (I wondered why the Broan site had so many vent-into-the-kitchen models... now we know...) It's heavy even with the blower out and in our installation was hard to fit into the ducting, which had enough play in it to slither about (but also enough to make it possible to install the new hood at all). There is a front panel on the old hood which hides a vent opening into the kitchen (didn't try to push it out on the new hood)--  why it's there at all I'm not sure.

I got this hood to replace one which was installed many, many years ago and caught grease vapor and frying odors from my true restaurant range's 26,000 BTU gas burners reliably and continuously. It has a two-position mechanical switch (no touch panels for anything) for the two lightbulbs, another two-part (one turns it on, the other adjusts the fan speed) mechanical switch adjusts fan levels from whisper to whoosh, and a sensor which turns the blower on automatically (to whoosh) when the air passing past it gets hot enough to wake it up. Grease vapors are caught by two large panels of aluminum mesh, quite scrubbable (but watch what you scrub with -- alkali dissolves aluminum). The semi-transparent plastic hood over the light bulbs is also cleanable, with difficulty.

Descriptions of this hood tend to make much of the fan switch's "memory" -- don't be fooled into thinking this iinvolves some electronic circuit board that would no doubt soon succumb to grease and heat -- as far as I can tell, it's a simple mechanical rheostat-type switch just like the one on the old hood. When you turn the blower off with the on-off switch, it doesn't involve the low-to-high speed switch at all so naturally the blower turns on at the speed the low-high part is set at.

Similarly, the "lo" and "hi" setting on the light switch just means that you can turn on one or both bulbs. With the new types of bulbs, you can put in a very small bulb on the low side and a quite bright bulb in the other socket, and have a night light in your kitchen as well as good lighting over the range top.

The only thing that made me replace this hood was that the light switch broke, and I'm pretty sure that was because the Roof Rats that live in our big old walnut trees pushed the cap off the ducting and chewed on it. It was, shall we say, quite obvious that they'd been visiting. Not likely to be a problem for most users.