I used to watch this when I was younger on nicktoons etc but never saw the whole story including any of season 3, I always seemed to watch the same 5/6 episodes in a non-chronological manner, which was frustrating because I really wanted to know how it fit together and eventually panned out.
When netflix added the whole thing I was over the moon, please don’t be put off if you’re an adult because it hand-on-heart is brilliant. I never wanted it to end. If you unsure on whether to give this a go, then just go for it you will NOT be dissatisfied