Besides the points made above regarding Wasabi funding blockchain surveillance company and turning evil, I wouldn’t trust their anonymity score calculations. They are either invalid, or their software is faulty. Or perhaps both. According to this topic page, it is evident that either Wasabi does not display the correct score or that it wastes block space.

Please correct me if I’m wrong. The Wasabi shill I addressed to didn’t convince me with their diplomatic replies. You can read that discussion and see yourself.

Considering the fact that the Wasabi team is cooperating with blockchain analysis companies (ie. companies deanonymizing transactions) I wouldn’t categorize Wasabi wallet under any privacy improving tools to begin with. So the “privacy percentage” is 0%.

I used their coinjoin long time ago. As far as I can remember they have different set of anonymity. You can chose the one which is appropriate for you. Higher anonymity cost your higher service fees.

I don’t think 100% anonymity is not what you are looking for, you are looking for the break of the chain. After receiving the coins you can either keep it in Wasabi wallet or you can move to a new wallet, that’s not a big deal. But you will never connect the old address with this new coins that you received.