Does this easy change involve the use of a stapler? If so I wouldn't call that as easy as changing a reefmat which takes me 10 minutes including cleaning parts (takes probably 3-5 mins max otherwise)
I assume by uses "too many material" you mean it uses too much filter floss?
The oem rolls last much longer on all tanks I use them on compared to a clarisea or bubble magus.
Additionally with the use of precon rolls cut to size, I get similar performance for a mere $12 a roll after shipping.
There's no such thing as light handed feeding in this house.
Their stuff is mostly made in china afaik.