For these reasons, I'm not sure B5 really paid off on its promise and, at best, took a considerable willingness to overlook the weaknesses.
I'll grant you that every sci-fi show seems to have its bad episodes, and many of them occur early on. DS9 was not immune to that effect.
At some point I pledge to give B5 a more serious attempt. But I feel I should do that sooner, rather than later, because the show's looks are not aging gracefully.
The last 1.5 seasons of B5 were a letdown though. They had problems throughout with actors leaving abruptly, imminent cancellation, etc. that threw the plot arch off track a little. It could have been a lot better. The six or seven movies that were produced after the show's run... couldn't get through more than a few minutes of those.
It is worth the initial slog to catch the cross season story arc about the First Ones, the Shadows and the time travel stuff.
I think what puts folks off with B5 is that some of the sets and makeup are a a wee bit iffy, but the story itself is pretty damn good once you get past that.
I do recommend persevering because there is a very good deep story being told in B5.
Seasons 2-4 comprise an outstanding story arc. Londo Mollari, the alien with the upward-pointing hair, goes from Falstaff to Macbeth to redemption, and that's far from the main story.
And the central character -- head of the station -- was changed after Season 1, to a figure who was more heroic and more funny at once.