I should also add that for my two Curse of Strahd campaigns I'm running right now, I created/edited a whole bunch of new feats for the game... one of which is Metamagic Initiate-- basically the metamagic version of Martial Adept. It gives a player 2 sorcery points and one metamagic option that any spellcaster can select and use for their spells, and which a sorcerer can add to their total SP and metamagic count. Basically just like a Battlemaster Fighter can add the superiority die and two maneuvers from Martial Adept to their count were they to take it. I haven't had anyone take the feat yet, but I'm curious how it plays (and whether the two extra SP and that third metamagic option helps the sorcerers feel like they have more oomph.)