I like Star Trek V. It's no masterpiece, but I think it's fun in a TV-movie kind of way (disclaimer: I think Nemesis is great, too)
About the effects: Sha'Ka'Ree looked great from space. I didn't think the rest were too bad. A little weaker than normal, admittedly but hardly the worst ever.
STV was also the first Star Trek film I ever saw. As a kid I loved the horseriding phaser attack on Paradise City.
I must admit Spockhura works a billion trillion times better than Scottyhura. What were