My 1949 Seattle home had a small original kitchen so we removed a wall and installed the white flush mount range hood where the dining area was previously. An island will be added later with an induction cooktop which the hood will vent.
While the original ceiling joist direction runs 90 degrees to the range hood, we needed to use Simpson Strong Tie 2x6 joist hangers when the wall was removed so we used 4 more to create a 2x6 box around the range hood so it could be installed flush. The effect was definitely worth it given the relatively low ceiling height.
The electricians who replaced the knob-and-tube finished installing it today. To support the 4 fan speeds and dimmable LEDs, it uses two 14/3 Romex bundles so it took longer to install. Make sure to let your electricians know about that early since mine overlooked that as part of a big rewire and had to fish new 14/3 wires through. (I did put out the manual but they had a lot of rough electrical work to do.)
The only thing that could be improved is for the knob for the wall plate to have a semi-circle recess on the inside so it doesn't rely solely on the tiny allen key screw to hold it in place.