It's the old "enemies having to work together" story with Sisko and Eddington in a sequel (or coda) to "For the Uniform". Like "Indiscretion", which features Kira and Dukat teaming up in a similar way, the nature of the plot lends itself to dialogue, with much of the action near the end. That's good for the budget (in fact, sets from Children of Time are reused, albeit with different lighting) but leads to an underwhelming Sisko episode, being more talky than exciting.
Still, there's something compelling about Eddington, which is probably why he keeps returning. Part of the reason by might be that Kenneth Marshall is like him in many ways: he's talented and dependable, but he just doesn't have the look a leading man. Yet through Eddington, he's able to turn his everyman qualities into assets that shine in a way they otherwise wouldn't. We believe that this short old, bald guy can be a charismatic leader, or at least wants to be.
Is it enough to make "Blaze of Glory" a standout episode? No. Though it includes a humorous B story where Nog tries to win the klingons' respect, it lacks an element to make it special. (Personally I would have introduced a whole Eddington family: a wife, two daughters, and a son in hiding. They almost go there, but they don't go far enough, and it's a shame because it would redefine the character, forcing us to reassess his life, and make the ending all the more In the end, Marshall's last appearance is much like himself: solid but unremarkable.