I tried one once. I could never get it to drop to the right height the first time due to the uneven ground so I was either trying to shoot from an odd stance or trying to adjust it while the deer became more and more wary. With practice I'm sure you could minimize that but I'd rather lean against a tree or somethin.
I don't like the monopod stick. It controls up and down movement but seems to accentuate side-to-side movement. Instead, I used a Cabelas brand collapsible bipod type sticks. It is kind of like the bipod Primos Trigger stick but without the trigger collapsibility (which from on-line reviews looks kind of weak).
Be careful where you place your arms with the barrel/cylinder gap. I have never used the shooting sticks but have thought about a time or two. Just never had the need after my bum ankle, hunting stands for me now.