So I bought 30 of the 1g boxer browns for my indoor winter grow and have a mixed opinion of them. Compared to the grow bags I'm used to, the fabric is stiffer and doesn't soak up water as readily. May have to do with the plastic content. The stiffer fabric makes them easier to move without disrupting the roots and I figure it may also have better thermal qualities. I wonder though if it will be as effective at air pruning the roots. With the other grow bags the material seemed to take in moisture better, leading to alternating wet and dry cycles with waterings. I assume that might better encourage roots to grow into the material and then get air terminated when it dries, thus these might not be as good at air pruning. Just specualtion for now though; I won't know until I pot up. Another positive is these things seem pretty durable.
The big negative I'm seeing is the handles are at the top of the edges and they are quite big. On my other pots the handles are a soft nylon and they fall to the sides and out of the way. These you simply can't push down to the sides so they either stand up, interfering with the leaves and blocking light to some degree, or I can fold them down, but they stick out to the sides and prevent me from putting two pots close together - year, they're that bulky and rigid. There is an easy solution - just cut the handles off - but I'm holding off on that for now because it's not reversible. Also, once the plants are bigger the handles aren't an issue because the plants are no longer kept that close together and the plants have grown above them. That said, these are 1g bags that will mainly have smaller plants in them.
Anyhow, 30 bags for $30 delivered was a good deal and I'm not unhappy with them, just pros and cons. With the handles removed they may be awesome. Thanks again nmlarson and alkhall for the heads up and recommendation.