Atlas is quite literally rocky, both in the theming of his abilities and his boxing prowess. Atlas strikes a balance somewhere between a tank and a damage warframe. With access to astonishing amounts of armour, and massive amounts of invincibility during his ability casting, Atlas is very difficult to take down. In addition to being very durable, Atlas is a relentless damage frame punching out consistently high damage in a generous area. The choice of the word punch is very deliberate here, as he quite literally punches enemies with his massive rock gauntlets over and over and over to deal damage. His key ability allows you to chain massive tracking punches together infinitely as you relentlessly pursue enemies. The rest of his abilities synergize with this ability. Fundamentally though, Atlas' gameplay revolves almost entirely around his punches. If that very enticing theme appeals to you, I would highly recommend atlas. If not, no worries, as Atlas doesn't necessarily move the needle as far as warframe strength is concerned.