I have the AT Pro and must say it is very stable when ground balanced with the ground and sens is at 3/4's. Depending where you are you could pick up other fields from cell phone towers or what ever. It is very high quality and I expect to never have any issues with needing to send it in for warranty work. If there is one con, it has to be not having a beer spigot. Max of VA beach has been using it at the salt water beaches with good results.