When Deep Space Nine came out, essentially replacing Star Trek Next Generation, a lot of us didn't like it much. For one thing, the aspect of the show was dark; the space station seemed dark and rather dreary. And the new characters, Sisko, Odo, Kira, didn't seem to blend well with favorites like O'Brien from TNG. And then there were all the Ferengis. If you had to pick an alien species to focus on, why the Ferengis? Annoying little trolls with irritating habits. Did they have any redeeming qualities?
But after watching "The Emissary" and then the series, one after the other in streaming video, I realized, this is a very good sci-fi series, even if Ben Sisko will never be as popular as Jean-Luc Picard. The Bajor-Cardassian conflict makes for some good conflict and plenty of plotting and planning revenge. What is that Garak doing, a Cardassian as a tailor? And Quark, the Ferengi bartender, is acted so well by Armin Shimerman that he develops as an interesting character.
While the characters never seem to take on the personality that happened on Star Trek Next Generation, the writing is excellent and the episodes full of adventure. It did not take three seasons for this series to find its way, and in fact the first two seasons are quite good, not the case with Next Generation, which took three seasons to become popular and frankly, the first two seasons are awfully hard to watch.
While you can purchase these as DVDs with extras such as Deep Space Nine: A Bold Beginning, crew dossiers on Kira Nerys, and stuff about Quark's bar and the imaginative aliens, I watch mine in Amazon Prime. Long series with many seasons make for good evening watching, when you can download two or three episodes and really get into the series. While the characters never seem to develop as well as the Next Generation (Troi, Picard, Crusher, Data and Geordi) the writing and plots seem actually better in Deep Space Nine and it's one of the best science fiction series ever aired.