I understand the complaints because I hated it when Pixel dropped the jack. But it can be a smoother process than jacks.

I get in my car and no longer fumble to pull my phone out and plug it in. Pairing is quicker than plugging in a cable.

When doing yardwork I used to have to fish my cord through my shirt or it would get caught and yanked out by a tree branch. Even then it was cumbersome because of too much slack or too little slack causing disconnects or snags.

It's not perfect. A downside that still might exist (I bypassed the problem years ago so I don't know if they ever fixed it.) was Google's auto pairing that wasn't able to be turned off. When I walked close to the house from outside, my phone would decide on its own to pair with speakers in the house. But that's a Google problem, not Bluetooth. It didn't exist with Nexus because you could manually control pairing.

EWaste is a problem.