I don't dislike this one as much as I used to, but it has some really cheesy yet disturbing parts to it. The Troi and Ral parts are painful to watch.
Seems like even after TNG "got good," the Troi episodes were still usually bad.
The idea of the wormhole was pretty great though. An intriguing enough episode that you could build a whole spinoff series around it. If only someone could find a wormhole that is stable...