As far as I've seen, Carbon has gotten slightly better in its withdrawal periods, but is still way too long.
I've seen a few people report that it was cut down to about two months, but for most of this year it has been 4-6 months, and I don't know how anyone could possibly disagree there. Maybe a handful slipped through, but this forum and every other one is plagued with negative feedback on Carbon for that issue exactly.
Otherwise, it's my favorite site to play on. I would NEVER recommend depositing there at this juncture, but I've been rolling off of a casino bonus they gave me so it's kind of a non-factor for me.
Idk why everyone is attacking Grindmode so hard - almost everything he said is 100% true (although maybe slightly outdated).
Carbon removed live support so they didn't have to bother with so many withdrawal chats. Kind of a dick move.
Carbon ranges anywhere from 4 weeks to 20 weeks on withdrawals, apparently. Terrible.
I'd recommend sticking with another site until their issues blow over, if they ever do.