My last withdrawal from their was probably around May or so, so not too recently, but I think BTC withdrawals were usually processed the day after the 48 hour pending period finished. But obviously can't say if that's still the case or not.
One problem that I did have on two different occasions was when the value I received was substantially different from the current BTC market value (10% or so), so that's something to be aware of especially since bitcoin is volatile right now. And then you try to contact support you just get a copy/paste reply that they aren't responsible for the fluctuations in bitcoin (which is irrelevant since you should receive the fair value at the time of withdraw), it can be very tough to get the message through to them. I managed to get them to refund me the proper amount one of those two times and the other I gave up.
I'm also about 90% sure they freeroll you on price swings when you deposit bitcoin which can be slightly annoying, was worse when they used to make you wait for 5 or 6 confirmations for them to process it for some bizarre reason (about an hour - if the price went up you got the listed exchange price at the time of deposit, if the price went down you got the reduced current exchange price, so you could only lose and not gain on the price fluctuations. It's definitely possible the payment processor was just pocketing this advantage and the casino was too dumb to realize it though I suppose.)
Looking back on it, sloto still had most of the flaws and tricks of the casino industry that were prevalent in most other casinos like the withdrawal "pending" periods, but one of their greatest strengths was you could be pretty confident that you would be fairly paid if you won, especially with the relationship they seemed to have here, and no particularly glaring downsides. But now if their withdrawals are being delayed, their communication is apparently problematic and they are accidentally "missing" messages, and they're taking clearly exploitative steps like having customers reconfirm already completed identity verification steps before they can withdraw money, those certainly aren't good signs.
Wow I just reread some stuff and noticed you said the accredited us section is gone , what , why??? Like I mean i get US isn't like a high spot for online play but why did they toss it here ?
My assumption is that this was done to make way for an accredited section for regulated casinos. Whether or not that was a good idea to do, I can't say. Obviously I'm a bit biased since I don't have any regulated online casinos available to me but it seems a lot more useful to know whether these offline unregulated casinos are trustworthy than some las vegas megacorporation casino group.
The regulated casinos you know you'll get paid so you can just try for yourself to see if their service is good or terrible or whatever else, the risk of being wrong is low because you can just take your business elsewhere. The unregulated casinos it's more risky to just give them a try because if you make the wrong choice you may get stiffed on a big win if you pick an untrustworthy one. So it's a bit disappointing to see that list gone (or relocated to some other site and not sure if maintained?), even if I might disagree with some things on it.
And without the accredited list for the unregulated casinos it's a bit harder to know which of those casinos are actually maintaining a strong relationship here so that players will know they will have somewhere to come if they experience a problem - again which is probably a slightly lesser concern for a regulated casino, as you have other legal resolution options and they can't just start ignoring you and keep your money.