I think this episode is pretty good. After watching it again, I really enjoyed it. The season 3 SpongeBob look/shape was there and best of all... his personality was still intact! I would be a VERY happy person if Season 10 brought back this SpongeBob and started making him like that again. Classic SpongeBob right there. The ONLY thing different to me is his voice, it's a little bit higher... other than that, it's old classic SpongeBob to me. I like that. The story is probably the best from Season 5-Now. Pretty simple, decent. This is the direction Season 10 needs to go!
I'd rate this episode 8.2/10 or 4/5. I'd say this episode is even better than anything in Season 8 or 9. Just really cool.
The only thing else this episode needs is better clever jokes like the first three seasons did. Other than that, pretty good.