Lol. Some people hate it. I'm totally biased since it's the only way I've grown though. I've never had issues. Was at a grow store one time and a guy and the cashier were talking shit on it. The other guy who works at the same store loves it and let me know why his coworker hates it. Root rot. Some people just can't avoid it.
Sometimes I wish I ran coco. Like this summer I don't have enough electrics in the room to run my AC and chiller. But I've been keeping 70F res temps by just cooling the room so the AC stays since it's dual purpose at this point.
Nothing better than popping off the top and seeing a beautiful mass of pearly whites roots complete with fuzzy feeder root hairs