Voyager was certainly mostly misses. It did get somewhat better in the later seasons with the Doctor and 7 of 9 getting some good character development. But if I added up all the episodes I watch when I'm going through it I'd guess there would only be enough to fill one season, so 1 in 7 are good enough to watch multiple times. I'd say half the episodes are meh, they are watchable but forgetable. The rest are like, "what the fork were they thinking".