Hey Willie! Thanks for poppin in.
So the biggest difference has been in the ease of use. I don't think I've reached the point where I would be able to tell a difference in the growth yet. I feel like that will come once the roots fully fill the pots and we see how well they air prune, if there's any difference at all.
But they 100% water better, even the cheapest ones. Despite the various mesh sizes, they all funnel water down through the soil better than the felt pots. Whenever the soil becomes hydrophobic in the felt pots it can be hard to saturate it again because it just runs down the sides and seeps through, and that doesn't happen with these. They definitely can let some water through but in the whole they seem to keep it where it should be better. And as someone with a habit of getting lost watching cartoons with his kids till he falls asleep on the couch or having a few too many pale ales watching the Celtics with his friends, I know all about hydrophobic soil... it's amazing anything survives in here honestly lol.
Time will tell how big of a difference they really make, but they're definitely an improvement so far. They stay much cleaner as well.