Rocket Power gets a bad rap. Not that peoples' opinions don't count, but there's a place for this kind of show. It's not terribly deep or anything like that; just a bunch of kids and their adventures.
I think to like this show, you might have needed to be the kind of kid who's in the show. This is one of the shows that I grew up with, and even before it came on, my friends and I did all the same things that the kids did in Rocket Power. If we weren't playing street hockey, we'd be riding our skateboards, surfing, etc. This show was easy for kids like us to relate to. I think if you didn't grow up in that kind of environment, the show may just end up being annoying and uninteresting.
What I liked best about Rocket Power(and other Klasky-Csupo cartoons like The Wild Thornberrys) is the subtle amount of character development. Now surely it doesn't stand up to the kind of development in adult shows, but even at that age I was impressed considering the number of kids shows where everything resets the following episode. As an example, Sam(The "Squid") started out being the new kid/geek/loser who was pretty terrible at any of the sports that Otto, Reggie, and Twister would partake in. Sam does retain his identity for the rest of the show, but I recall that by the end of the show, he managed to fit in better with his friends and even became better than Otto at some things.
Sadly, I can't really say the same about Otto, who needed the development almost as much as Sam did. This was attempted in a few episodes after we learn the moral of the story, but things usually reset for Otto in the next episode. Taking that into consideration, I kinda wish Otto was left out of the series entirely. That would have removed 90% of the annoyances most people cite.
I don't get why people say Rocket Power is a "stereotype". If you want a stereotypical kids show, look towards shows like Recess where they took the most typical group of kids with the most typical archetypes and put them into the most generic setting for kids to be in(a school yard). Rocket Power, on the other hand, takes a specific group of kids who have their own individuality as well as a female character who exhibits very few "feminine" character stereotypes, and bases stories around that. Much more interesting to me, personally.
Now since I'm an adult, I doubt I would sit through Rocket Power or other Nicktoons again, but if I have kids someday and RP came on TV, I'd let them watch it.