Hello! Passed through Frontier Airlines SFO Terminal last week and had a straightforward, uncomplicated experience. The space was tidy, and signage was clear. There was not a large crowd, so it was an easy pass-through security and to locate my gate. The terminal is not fancy, so do not expect frills pack your own snacks and entertainment. Nevertheless, the personnel were friendly and effective, and my flight departed on schedule without a hitch. It's certainly minimal, but that's part of flying budget. Overall, if you don't mind getting from point A to B and don't need to spend an arm and a leg, this terminal is adequate.