Ceiling mount heater

In the process of doing a much needed makeover inside my shop/garage and I'm looking at the Mr Heater Big Max unit (ceiling mount) heater I have fairly good insulation and it's 24X40 with 8 foot ceiling any experience with these or suggestions

I have the 50,000btu in my 24x32 shop running natural gas. 9 1/2 foot ceilings, fully insulated. I leave it at around 42F when not in use. When I go out in winter I bump it up to 64-65F and it warms up to that in about 15 minutes. Love this heater. Moves a lot of air and throws good heat. Have had it for the last 4 years and no issues so far. I recommend this heater as well

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Note: Cord and wiring have since been tidied up. This was right after final install