I have a Primos Trigger stick tripod. It is a dream to shoot off and easy to use.
I walk out in the veld with it already extended for a standing shot. This makes deployment easier and also if I want to take a sitting or kneeling shot it is quick to retract the legs.
I would really recommend them.
Be forewarned that a slight knock on one of the legs can cause it to struggle to deploy that leg without a little help.