Picked this up for a 2x4 grow space and it fits perfectly. The rectangular coverage is honestly the biggest plus-no wasted light like with square fixtures. It's bright, runs fairly cool, and the dimmer makes it easy to dial in for seedlings or veg. I also tried the MarsPro app with the Bluetooth add-on, and while it's not required, it's nice being able to adjust brightness from my phone. Plants look healthy and growth has been consistent so far. Overall, it feels well-made and worth the money for a small to mid-size setup.

I used this unit in my 2x4 grow tent, it's extremely bright and great for starting vegetable plants.