Very well done show that holds up quite well. They were able to strike a balance between baddie of the week and keeping the bigger arcs moving forward. Great cast full of a lot of sci-fi regulars. Solid writers and production staff. And just enough money for special effects. My biggest complaint was and still is headshots. Why empty a clip into the body of a creature that regenerates? Aim for the head. If history has taught us anything it's that every semi imortal being can be killed by removing or destroying the head.