Because EFB was curious, here's my reaction to the final episode of Star Trek Voyager (no spoilers, don't worry).
I thought the conflict of the final episode was suitably epic (of sorts). However, the stuff with Seven of Nine felt a bit forced to me. The final section, after the main conflict was resolved, could've had more impact, in my opinion. There was certainly *some* emotional impact, but not as much as I was expecting. However, I'm almost always "meh" about the final episode in a long-running show. That is, other TV series that I've finished watching (not just SF/F, but comedy and general dramas, too), their final episodes have ruined the entire show for me. Like, with How I Met Your Mother, for example. I thought the show itself was decent, but as soon as I saw the final episode, that was it - I donated my entire collection of DVDs to the local charity store, knowing I'd never want to watch that show ever again. That's an extreme example, but the general principle holds true for most shows I've watched. Voyager's final episode, however, has *not* ruined my esteem of the show as a whole.
Overall: Was it a great episode? No. Was it a good episode? Yes. Was it a good finale? Better than most.