Just rewatched this episode because it always happened to slip my mind. It's decent. Patrick had some funny bits, especially with his "blow blow blow and rub rub rub" line. On the whole though, this episode wasn't exactly hilarious. I give it a 6/10.
It's an okay episode. I like the humor, which you'd have to clearly listen to (Particularly Patrick's lifeguard rant), and SpongeBob trying to motivate himself. Oh, I also like the "Ready Freddie" (no, not FNAG but maybe a Queen reference) and "Ice cream!" lines. All in all, a 8.8/10.