I find it hard to believe this was the game that disappointed people, because I just got it today and I think it's great.
The game seems short, but there's so many secrets, hidden areas and items, and choosing multiple paths adds so much replay value. I love collecting lucky fruit, and surprisingly I got my ass kicked at a few spots (the lava level on Page 2).
Overall I'm loving this game. I think it's in the same ballpark as Yoshi's Island, and the exploration is a lot of fun. In my opinion, this could be the most underrated N64 game of all time. Thoughts?