The dynamic between the central characters is great and the stars, Amanda Tapping, Robin Dunne, Agam Darshi and Ryan Robbins is interesting, and it manages to introduce new cast members and loose older ones (Emilie Ullerup) without adversely affecting the show.
I have found some of the more off the wall episodes, especially the second season one where Tapping is thrown into the future and has to survive in a post apocalyptic world, to be the most successful.
Amanda Tapping is certainly making a name for herself at the moment, turning up in quite a few of the current crop of genre shows (if only SyFy.co.uk would show Riese). There is no denying that she is easy on the eye, but she also manages to carry the more serious stories very well.
Robin Dunne, Agam Darshi and Ryan Robbins also bring a mixture of talents and attitudes to the show that all seem to work well together.
I really enjoyed watching Emilie Ullerup on the show so I was sad to see her relegated to an occasional appearance as one of the bad guys. Still as long as she shows up from time to time that will be no bad thing!