Since we're now mid-way through the month, I'll just chime in on how I feel...
Gear being only worth 5z in shops - I don't hate it, but I am a little confused. Hopefully, you guys can correct me. I'm assuming it's a way to prevent inflation in the economy, which I'm sure we've all seen by now happen already. But then that leads me to equipment that are merely novelty and are mostly intended to be sold, like many of the rings (Skull Ring, Gold Ring, Flower Ring, etc). Perhaps these should be adjusted, just a little bit.
Vending - I noticed that there's a form of a marginal tax rate for items being sold that exceed a certain price value. For sure, this is a form of currency sink, and I like the idea. It would be cool though if that zeny from the tax can be used by the game staff to 'fund' things in the game, like events and new Kafra/Cool Event services. This way, the more people spend in game, the more they're tax money fund social services, haha.
Increasing number of bots and scammers - now we're getting into the not-so-positive side of the game at this point. I'm not sure if EasyAntiCheat (EAC) is working or not, but so far, I'm a bit disappointed in the feature. Granted, we're only about two weeks into the open beta, but this was touted as a tried and tested anti-cheat system, and there are obvious bots wandering all over the place already.
KSers and thieves - this is obviously something WP has much less control over, but I feel like I have to mention this. I swear, some players have no sense of respect. The KSing part is particularly true about many of the Archers and Hunters that I've encountered thus far. I'm clearly standing right beside the enemy, about to strike, then not only do they snipe it, they also snipe/Double-Strafe everything else close to me, and they still have the nerve to say to me "life is hard" when I call them out.
So this is pretty much my experience so far. I'll let you all know more next February. Maybe.