POTS ! different types

Anyone familiar with Smart Pot ? Saw one at the grow store the other day. Seems like a good idea, an aeration container that stops root circling. How about grow bags ? I'm wondering will they stay upright, or will they sag over. Seems like you could group them together pretty easy. Always looking for those tweeks to help dial my tent, which is 39"X39"X78".
 
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