Good god this is awful. The Feats are absolutely terrible 3E (not even 3.5E!) style stuff, quite different to the Feats in a lot of playtests.
Gone, for example is the deal where a feat that requires Weapon X gives Proficiency in Weapon X, which was a really nice little thing (only the armour ones do this). Athlete doesn't give (nor requires) the Athletics skill, either... (and is terribad)
What is present instead is the horrible, horrible 3E trend of "You can't do this thing you could obviously do UNLESS you have this Feat!".
For example - Healer's Kit - we now know why it's worthless in Basic - you can only actually heal with it with a Feat!
Or Dual-Wielding - Obviously a PC could normally draw both his weapons to attack right? No DM would enforce him drawing one one round, and one the next? Right? Yet
unless you have this Feat, your PC
literally cannot draw both his weapons in one round. To hell with, y'know, both real life and every movie with swords in ever, eh?
Or grappling - You'd think that anyone grappling could potentially try to restrain the target by dragging them to the floor (becoming restrained themselves in the process), if the DM agreed? But no! Not unless you have the Feat!
Many of the Feats are just boring bonuses or minor benefits. Some are wackily OP. Some near worthless.
Some are fine, to be fair, but good god, I hope a lot of these got adjusted, because this awful, much worse than any playtest implementation of the Feats. They should NOT be gating basic stuff like using a Healer's Kit to heal behind a FEAT, especially when there's a bloody Medicine skill!
EDIT - The fact that Basic still has Healer's Kits as near-useless suggests that they DIDN'T change these, though, which is super-worrying. Roll on PHB release, I guess.
EDIT - Lest I be a huge downer, I will say that broadly, the classes and so on look BETTER than the playtest. Some are less interesting than others and there are some bizarre decisions (c.f. "tough but not very damaging Barbarian" above - he will get some hilarious crits at least), it's only the Feats that are broadly awful/crap. I note that most of the Feats which aren't kind of horrible were the ones which people had spoiled previously. So much worse than the playtest here.