Absolutely loved it! Not only was the soundtrack amazing, but I loved seeing how far the Les Copaque studio have come since their first Upin Ipin debut, in terms of animation!
The songs were awesome and the characters are endearing. My only hung up was that there were a few plotholes where I can see that the studio would have been able to fill if they only had more time for the movie.
But overall, I will repeat myself, I absolutely LOVED IT.