Presumably, this is for people who are already advanced to get a little bit better? Otherwise, if you want to level up my poker game I would need a few lower rungs on the ladder.
But I think even as someone who has used PokerStove in the past, and has programmed some range evaluators, the UI is pretty intimidating for me.
Equity and range evaluators got a lot less useful because people figured how to make software that solves the full (simplified) game tree. This is a superior approach to anything other than all-in spots (which have game tree of one nodes.)
Most serious players these days primarily use software like pio and monker because the competition has gotten tougher and old equity calculators are like using a graphing calculator vs a