Product review (4 stars): Very satisfied customer but scope of improvement on manual and vdie can be little explicit (Very minor and trivial)
Read so many before buying this unit. However the description or manuals were not clear on the below three, which was important to me and thought this had based on reviews. My bad too so have given a 4 star and nothing wrong with the product.
*** There is no sensor to auto switch on the unit**
** This does not have the oil drip tray**
** Also my unit does not have the suction as shown in video. Not even in Fan speed of 4 which is the max. Video shows the box being glued up to the unit even at fan speed of 1***
Atleast mine has turned on so far.

Order and shipping.
No hassels and Got this pretty fast way ahead of what shipping said.
Installation
Unit is heavy so you need 2 people to fit it.
Easy instructions and the installers fitted it in couple of hours hooked to tubes and opened the ceiling and were done.
(Not the handy man but professional installers).
Operation
The timer and fan switch on was easy.
The auto timer off for fan is also a nice feature.
The light is nicely illuminating and was sufficient for us. Not like many users have complained.
This model the fan does not switch on automatically nor a oil drip tray.
The cleaning of filters are a jiffy.
The noise at F1 to F2 are not a botheration but F3 and F4 are noticeable. Well you want some suction right....

Indian cooking
For Indian cooking the masala smell is removed to a great extent. It also sucks all the smoke and vapor.
Deep frying leaves some smell inside the house

To test how good the unit is When we cook we go to the side of the house where the chimey goes to the roof top (not side). If the wind is blwoing the direction we can smeel it for a good 50 to 100 ft. Very powerful Indian masala smell is taken out and sent out. That is how noticeable it is. My neighbours have stopped by to say and ask what is cooking. So you may not want to take the pipes to the side if you are Indian or chinese cooking where the spices and condiments smell a lot and you are better off if taken to the ceiling.