Bandera is a great smoker, but it's not low maintenance.
If this is your first one, for the money you can't go wrong with the WSM. It's incredibly easy, can cook enough for a large party, or just something for dinner. It runs easily on charcoal, which is easier to get than the biscuits, and can go long periods without tending.
It's really the easiest thing in the world to use. If you want to spend more money than that, then the Egg lines are also amazing. When you start moving up and want loads of cookspace then you start getting into Spicewines, Stumps, Backwoods, etc.