I used to use an Air 2 and it works well enough in recreational situations. But when using one, you basically want to be able to do a direct ascent to the surface. If you are deep diving or diving on any other type of soft or hard overhead environment, an octo is a lot more useable.
The further addition of a long hose primary makes gas sharing infinitely easier and allows divers to swim normally to a more convenient exit point or ascent line and makes deco/safety stops much easier and less stressful.
The further addition of a long hose primary makes gas sharing infinitely easier and allows divers to swim normally to a more convenient exit point or ascent line and makes deco/safety stops much easier and less stressful.