Good watch, could watch again, and can recommend (at least for dedicated "Star Trek" fans).
My favorites aspects of all of "Star Trek" are The Borg, and the artificial entities like Data. This movie potentially ruins both of them, depending on who you ask. Also, time travel is the worst.
I would have been much happier if we hadn't bothered with time travel as that creates a lot of other questions about why The Borg haven't utilized it before if they had such technology.
The investigation of humanity in The Borg and Data are pretty interesting though, seeing Data find what it is to FEEL is a great, but seeing The Borg personified into a single entity to which one can converse is odd, at best.
Seeing the Enterprise defend against Borg assault was fun, but none of the "First Contact" stuff was compelling at all.