I've used both Gorilla Grow Tents, Apollo and Vivosun. The primary differences I've seen between the Gorilla and the other cheaper brands such as Apollo and Vivosun is the zippers and mylar on the inside of the tent. Gorilla does have more sturdy, heavy duty zippers as well as mylar that doesn't begin to peel/rub off as easy due to the wear and tear of moving around buckets inside your tent and etc. With that being said, I don't feel like the Gorilla is worth all of that extra money. It's a very huge price difference for a less than large difference in product. I'd rather go with a cheaper tent with a few minor draw backs, and reinvest the money you save into quality lighting....