Nah, after several glasses of a strong alcohol, I'm sure you will end enjoying it, especially the end, believe me! ;-)
I love that Threshold is so often paraded as this easy slap to the franchise. So much of it was original, crazy bizarre, and entirely memorable. I think of it fondly.
I don't find it scary (I don't find most horror movies all that scary either), but it is gross... in parts. Also, Alice. That was a pretty dark ep.
The Thaw was pretty interesting (I love the face to face between Janeway and the "Master" of Ceremony", at the end) though disturbing. However, the all was rather scaring (the shoutings, the fear which read on the faces, the guillotine...), even if some lines or passages were tinged with humor.