This is not useful feedback, hence why it is not in the Playtest section.
One of the characters in a game I have joined is playing a Medium, from Occult Adventures. That's neither here nor there. The point is: I downloaded the playtest doc and read through it.
Yikes. Are you kidding me?
I remember the day I first picked up the Advanced Player's Guide, the day I first saw... the Archetypes. I was enamored. Suddenly, there were all these options to substitute for the straight suites of class abilities on the standard classes! Before that, sure, you could pick some options. Bloodlines, Animal Companions, Domains. Heck, you could even decide between a Domain or an Animal Companion! Either way, most choices were permanent. You picked your options and ascended the leveling ladder.
Those heady days are long gone, it seems...
Now, you can choose to remake your character daily. Just pick and choose your desired combination of abilities, bonuses, spells, whatever, cut and paste to character sheet, adventure, rinse, and repeat. A selection from 18 different options, all with ascending suites of powers.... from which, at certain levels, you can mix and match two, three, up to four of at a time. Of course, that isn't enough. To a limited extent, you should be able to drop some option and swap in another during the day, of course.
But, wait... there's more. Eighteen options is just for the playtest. You'll get a full 54 separate suites of powers to choose from, at your convenience, when the full class write-up is released.
"Hold on," you say. "Wizards select new spells everyday, and have since the dawn of time! That's never been a problem."
While that is true, spells are just, concise. Action-->Result (in most cases). This is just different. You get bonuses and abilities that interact and things that affect allies and stuff that adjusts spells and new spell lists and skill bonuses and feats and then... FLOOP!... wipe the slate clean and rebuild all of that.
I can barely imagine playing beside that character, much less DM'ing it (I'm not the DM, just sympathizing). We shall see how it goes, I guess... It seems like a flavorful class, at least.
TL;DR This is just me venting... I like to know what PC's are capable of without reading and re-reading a book's worth of material after every adventuring day. I cannot imagine this being handled easily or correctly over a long run. And it is open to so much potential abuse...