Best 5e Psionics. It doesn't invalidate the way the Core Rulebooks use Psionics, it leans into the Psionic Sorcerer as the essential Psion/Wilder (depending on your roleplaying, and without awkwardly forcing a spellbook on the Psion for a couple levels), it expands the options that psionic Fighters and Rogues can use, and it allows for Wild Talents so that everyone can reach into Psionic pools.
The most important takeaway is that a lot of what people want Psionics to do, SORCERERS WERE ALREADY DOING. Switch to a spellpoint system, figure out a balanced way to merging that with the Sorcery points, and you're 90% of the way there. We just needed a Psionic themed subclass.
I don't think that Psionic Soul Sorcerer should have to use Cha, but perhaps this speaks to a broader identity issue where casting stat shouldn't be a defining feature of a class. I can see Wise Paladins without much charisma, Charismatic Clerics, Intelligent, bookish Clerics, Wise or Intelligent Sorcerers, Charismatic Witchy-Wizards, Intelligent Ruleslawyer Warlocks, etc… This is similar to how Fighters could be Strength or Dexterity focused, depending on their choice of armaments.
If I was homebrewing this, I might try tying something beyond skills to each "caster" stat to make the choice of caster focus ability have trade offs.
That's more of a 6e feedback though.