k just read up on them, they look fuckin awsome man! makes sure they are the least streased they can get, no human error with watering (besides nutes)
it says its great for alot of things and tomatoes are at the top, usualy if something says its great for tomatoes its great for weed.
the only thing is that you will have to get some extra root controll discs and marix discs, you will want to change them every grow so no diseas is able to spread to the new crops.
they are a decent size for a full grow, over 8 liters. some people will say this isnt enough, but the biggest pot i have used to grow has been a 5 liter one, this is for my mother, the other plants i have i keep in 2.4 liter pots. i dont see too many problems with this, it just takes a little more care.
using this system the care it would take to maintain is already taken care of.
go for it man! and pm me when you start growing in it, i want to see how well it works! looks like its worth getting.