My T told me we have a great therapeutic relationship and I totally agree. I think a good connection is when your T can anticapte your next move, and be prepared to handle it. When T is on the same page with you and has real empathy for your situation. A good connection is when you KNOW that they care for you specifically as a person and not a paycheck.
My T told me once " I do care about your outcome. I really want you to get better. It does make me happy to see you do well. I do feel bad when your not doing well. Your not alone, I'm here to help you find your strength."
Those comments basically concreted our connection. I think above everything you need to be able to trust each other.