TMP is my second-favourite Trek movie, after TWOK. I find its slow-paced, full-sci-fi plot refreshing. You don't see much of that.
My favourite ST movie is still ST:TMP, but closely followed by ST (2009) and now by STiD.
In 1980, I was told if I'd only known TOS like other fans already did, I'd realize how awful TMP was. Still not seeing it. In 2009, I was told that it would be impossible
for a fan of TMP to like ST (2009). So sue me. TMP and ST (2009) were both amazingly immersive cinema experiences.