Level 28 poe is great for grinding y1 weapons. You get a guaranteed exotic on your first Lvl28 PoE run with each new character and then it reduces to just a "chance." I've personally only ever pulled maybe 3 exotics from there. (Minus the guaranteed ones.) I grind it for y1 legendary weapons because you can reroll stats on them and they are great for pvp! Edit: I should add that you can also get the y1 High Road Soldier legendary scout rifle there. It's the same archetype as MIDA and can roll with basically the same stats. Good way to free up your exotic slot in the crucible.