I too am new to the Voyager Series. I just got it, and I am up to Season 5 disk 6, already. It gets better some and worst. Jennifer Lein leaves the show, Jeri Ryan gets introduced and steals the show and seems like the future episodes as well. They even have episodes with a kid in there, I do not know who the hell thought of that. The kid was a waste of a good "Sci-Fi" hour. None of the more serious Treks, i.e. Original and TNG, would have never had such passive episode with kids being kids, unless there was some dark, suspense and threating reasoning behind it.
I am looking forward to seeing the rest of the series.
I thought Naomi Wildman was a fine kid character who added a lot to the stories she was in. I thought "Once Upon a Time" was fantastic.