So far, I'm 100% tuned out to One D&D. They seem to be ruining the game to me with the newer rules. I just don't care for it so far.
Like half races. The concept is good to be able to have half dwarf half gnome or whatever, but the mechanics are terrible. You need to create a mechanical blend, not make elves with gnome paint jobs or dwarves with halfling skins.
Then Nat 20 succeeds no matter attack or whatever and no Crits for enemies and so forth. Yeah. I don't know who's at the wheel, but no thanks. I'd rather stick with 5e, thanks.
A big detail of this playtesting process is that they're trying multiple variations and asking for feedback. For example, you'll be happy to know that the most recent playtest packet is back to using 5e PHB rules for Nat 20s and crits.
Imo there's a lot of good ideas, a lot of neutral ideas, and a lot of bad ideas in the playtest material. Some of changes to Bard (healing on reaction, PB inspiration per long rest until level 7, restricted spells prepared) are pretty bad. Giving Expertise to Rangers is good, but Rogues got shafted as they don't get extra expertise to power them up; they actually lost power because they can no longer sneak attack on others' turns. TWF finally got a much needed buff as off-hand attacks no longer requires your bonus action.
Imo, in general WotC is relying too much on abilities that have PB uses/long rest and giving everyone spells instead of unique abilities. They say they want to discourage single level multiclass dips, but by making so many abilities PB uses/LR they actually are encouraging dips.
