Tiger and Bunny is now one of my favourite animes of all time and I'm kicking myself for missing out on it for over a decade! If you love the superhero genre told from a strongly character-driven perspective that still has a ton of action, then you'll find the older seasons worth a watch at the very least.
The main two characters' dynamic is my favourite part and is an absolute delight to watch unfold. As the episodes progress, you get to see a lot of depth and growth from everyone. The supporting and secondary characters are mostly well developed and a lot of fun, and even the side characters who start off feeling like lesser interesting background characters or (in some cases) cliche stereotypes are built upon in later episodes to have depth too.
I've seen some reviews mentioning the sponsorship angle being an issue for them (logos on suits, heroes whose agencies require them to do ads etc..) but to me this feels exactly like what a plausible capitalist world would look like and didn't bother me, I just thought it was funny. It's a talking point in the story as a
The world is gorgeous in its own eerie kind of way with an art deco style a bit reminiscent of the original Bioshock with towering statues, retro architecture and crazy stacked levels.
The plot of the older seasons feels overall well planned out and takes you through some mostly well-paced twists and turns, even if a few topics are cliche. The newest season that just came out in 2022 is still ongoing so I can't comment as much on it yet other than so far it seems decent.
Overall, I recommend giving it a shot! It's a fun ride.