Honestly, I enjoyed it. And that's being a fan of the original as well. I thought it was a fresh take on a series that is almost twenty years old. If you're one of those """"die-hard""""" fans - then this won't be the series for you - don't even bother with it and just watch the OG, easy!
I thought this series was a fresh, mature take on the original. I kept an open mind that it wasn't going to be like the kid's TV show that aired back on Nick. Sure, there were some chances in the plotline and that was honestly fine with me. I knew from the get-go that this wasn't going to be a scene-for-scene show and that was fine with me. The changes they made were fine with me, too. Like I said - if you're one of those folks who lives, breathes, and eats Avatar then this isn't going to be a series for you at all - just stick with the kid's show, lol.
If you're someone who keeps an open mind, doesn't mind some changes to the plot line, or just wants a take on a great kid's show series and wants to see a fresh, somewhat original take - then go for it. Give it a watch!