As it was, a reasonable enough flick. I haven't seen the original in some years, but remember it as being fun. This was less fun, but still enjoyable. Don't think it was worth $17, so very glad I didn't pay $21 to see it in 3D. That said, I don't think most movies are worth $17, given that many only spend $2.50 on the script.
I think some of the action scenes suffered a bit because you couldn't always tell what was happening, and the effects were of varying quality. That said, I loved the two hunting characters that join the group, and the scene with the pimped out scorpions was inspired.
I do think for all the great big massive effects shots, the missed the shot that, if done well, would have the money shot of the flick - the pegasus running along the shore. If they'd continued that shot and shown it lifting off, it would have been amazing.