This thread made me just order one. I'll report back.
My plan is to keep it in my pack. I'll cut a 6 inch or so section of carbon arrow, epoxy an insert in both ends, and then wrap that arrow with grip tape. I'll keep that stowed in the sheath the saw comes with. I'll use that short arrow when I need it for a regular, close in saw and then transition to an arrow as needed. I guess I'll carry a small broadhead wrench to remove the head and then maybe a piece of foam to stick the head in while in use (don't want a sharp thing in my pack/pocket and also don't want to have to leave this on an arrow all the time). I am a bit nervous about cutting myself while in a tree.
I have had many times when a little branch in my way was just out of reach. This thing was cheap, so I'm willing to roll the dice on it. Honestly, a piece of cord with something to grab a branch to pull towards me might be just as good (I can't see being able to trim small branches with this thing if you aren't holding them because (hence the hook on the saw) they'll just shake around). Come to think of it, a hook you screw into an arrow might be better (weld a close hanger hook onto a field point?).
As far as people on the internet crapping on stuff, half of them probably haven't tried it and a lot of people negatively react to new things/things they didn't think of first.