Here's why its the Best (for ME) considering its price tag:-
1)- quality is just the same compared to ludicrously expensive lights available in market. I got em pretty cheap off a deal on ebay
2)- can dim and brighten it PLUS I can unplug one side of panel if I dont plan to use full 300 Watts so that's pretty handy.
3)- Heat generation is nothing, stays cool (well hot to touch but doesn't dissipate heat much at all)
4)- Bud quality, I will hold comment, feel free to check out the diaries of Gelato, white widow, renaissance, and current ongoing... You'll see bud quality ๐ , I leave that to you to decide.
All in All, I'd say its a Winner