You should have the sense that the pyschotherapist “gets” who you are and what difficulties you are experiencing.
The good therapist should be able to offer you hope that your difficulty is able to be addressed and solved — perhaps not immediately but with time and attention.
A good therapist should be attentive and able to listen well, provide support and validation while also able to be honest with you about your challenges and blind spots.
He or she should be informed about community resources and able to offer you additional information (books, videos, Web sites, support groups and other sources within the community) that may be helpful.
If your problem is outside of the experience and the scope of the therapist’s practice, he or she should be able to refer you to a competant professional who should be able to help you.