I tried watching Voyager a couple of years ago. I bought the box set in spite of the very mixed reviews because of my love for the previous shows (I even like Season 3 TOS and Early TNG, so I thought I might like it).
Gave up midway into season 3. It literally put me to sleep sometimes. Voyager isn't bad per say, it's just bland. Ended up getting rid of the set for a bit more than I paid for it, so I can't complain. I'll admit a few episodes stood out (I can't remember well, Death Wish is a good one) but the batting average was low enough that I didn't want to continue. It got where I would be in the middle of an episode and think that I could be rewatching TOS for the 20th time and that seemed much more exciting.