I happened to install Bisq once, but found it a bit complex and confusing to work with.
It can be a bit confusing at first, but once you get the hang of it, it's actually pretty simple to use. The great thing about Bisq is that they have a lot of really good tutorials, and the team tends to be very active on the matrix chat, so getting help is pretty easy.
Overall, what do you guys think of Bisq?
It's not perfect, there are issues that pop up once in a while. Depending on the general market, getting bites on your offers can take a while some times. Other times they get snagged up pretty darn quick. If your offers have attractive rates, they get snagged up fairly quickly, but no where near as fast as the big CEXs. I think this mostly has to do with how many (or few, rather) people are using Bisq. Once the software is able to attract more users, a lot of these issues will go away.
I think it's a good solution to buy in P2P model without registrations and KYC?
In terms of privacy, how do you rate it?
The privacy features are second to none. There's no KYC and they don't store any of your personal information on a server, not even the details of your payment accounts. All that information stays on your local machine, and the only time any information is disclosed, it's only to your trade partner while the trade is open. That means there are no servers to get hacked and no data breaches that can leak your info.
Once you set up an account on Bisq, the only identifier other peers will see is an onion address. If you take or make a BTC to Fiat offer, the other peer will see your name and email address. But again, the information is only visible to that peer during the time the trade is open.
What payment method do you usually use, to be as anonymous as possible?
I'm a US resident, so for USD Zelle or Strike are the most commonly preferred methods of payment. Obviously they're not anonymous since both require KYC to set up, but still fairly private since you don't have to disclose much about yourself. There are anonymous ways you can exchange fiat for BTC, such as USPS money orders which are safe and don't require the use of real names (unless you're the recipient and want to deposit the MO digitally.) The only truly anonymous ways to trade BTC for Fiat is face to face cash transactions, and there a few of those offers near and around my area.