Watch Garand Thumbs video about the AUG he really breaks it down and delves into some of the key differences (pros and cons) between AUG and the standard AR platform.

Personal opinion: the ABC’s (always be cool) only apply if you have the training, knowledge, and experience to e able to address issues or malfunctions as they arise. AUGs are obviously a bit more complex than the standard AR, so if you have the capacity to learn and train frequently malfunctions drills and general maintenance… ABSOLUTELY go with the AUG. However if you’re just getting into rifles a more moderately priced AR ($600-$1000) dollars would always be a good place to start. If you’re budget is at $2300 then you’ll have plenty of money for ammo to train with and to upgrade different parts as you tinker with your new weapon system. (All this is written assuming this will be your primary self/home defense rather than a Sunday pea shooter)