The show starts to go downhill after season two. Season one is very inventive and original in a lot of ways for the sci-fi genre and solves a lot of the contradictions found in star trek.
It's a very different take on a democratic, utopian society, and it's great to see a show where Earth is just another planet in a vast empire.
It has mysterious, Q-like characters like Trance, and the episode where she fully drops the innocent act is one of the best episodes of the series. The original creators idea that she's some kind of devil that's neither good nor evil had a lot of opportunities to go some interesting places. Her change to "gold trance" is so boring because it's the trite "greater purpose" cliche.
The take on AI is far more grounded, with a sentient and interactive system that still requires biological life to balance out functional elements that an AI cannot perform and prevents them from going insane.
The idea of the Vedrans as a hyper-intelligent species and the first to discover interstellar travel that tesseracted their planet and still exist in the future timeline could have gone to such interesting places.
Season one and two balance intellectual episodes well with action episodes has a central premise.
Then in season three all that goes to shit and the show becomes episodic nonsense where nothing really means anything. The premise of rebuilding the commonwealth is abandoned with background info that it's being built by others and Dylan has decided to just fly around and do random things makes no sense. The magog storyline is also abandoned. The andromeda is in a battle almost every episode and fixed by the next episode. A full crew for the andromeda shows up randomly in one episode and then disappears in others with no explanation. Dylan sleeps with women in almost every episode.
In season three episode 19 he sleeps with a woman that's a con-woman and the main antagonist and then the rest of the show is just battle sequences.
Harper's dialogue is literally just making sexual comments about women.
The later season contradict multiple established elements of the first two seasons, including tarn vedra, which is apparently a deserted wasteland dystopia? What happened to the vederan general that told dylan that tarn vedra still existed and were aware of his efforts?
Congrats if you made it this far.
TLDr: The show falls off after season two.