I liked it a lot. Second from the top vote. I thought it was well worth seeing in IMAX, too. It definitely needs another 20-30 minutes in the beginning but it's a great Super Friends movie.
Miller's Flash was weird, but entertaining. I loved that they depicted Aquaman as a powerhouse rather than a joke. Cyborg was okay and the Trinity was solid. Mera didn't have much screen time, but they didn't undercut her power.