THIS. I feel like this is the most important thing. My old SM was pretty disconnected. It wasn't too bad, but he never ever worked nights (that I know of), would only work one position on the floor (DTO) unless partners made a fuss, would write people up for over sleeping when he scheduled them to clopen, and the list goes on. As a person, he was fine. As an SM he was disconnected and worse, usually unwilling to really listen to partners when they tried to bring up issues or get support. He'd say he'd handle it and do nothing, or say that we all just needed to be more positive.
My new SM is amazing. He truly makes an effort to see that everyone is cared for and to be fully integrated in the team.