What's nostalgic is the way it's written honestly. It's very much like the 90's show. Which can be good or bad depending on how you look at it.
It's not a 2010's version that's darker or more serious. The budget isn't amazing. The story is simple. It's not what draws us into movies nowadays where we're now accustomed to really good superhero films and such. But it kind of works. It's pretty kid friendly but the audiences that will truly appreciate the cast and story are those that are a fan of the OG, and I think that's exactly who they made this film for. It's a blast from the past and a tug at your heartfelt childhood heroes. It's pretty cool seeing the cast back with some better CGI all these years later. It's really cool actually. Who would have thought?! The costumes look amazing and slightly upgraded yet adhere to the original. The morphing and teleporting transitions are flawless.
Is it going to be omg amazing? Not really but they don't act like it's going to be either. I think they knew the material they were aiming for and succeeded nicely.
The nods to the previous generations, those that have passed away, and keeping the original overall tone is the best way to honor the original MMPR.
They didn't finesse the story, or characters in a way that would disappoint. They're all good people still, and care about one another. And their actual love for one another shows. Thanks for making this film for us 90's kids! I wouldn't mind a sequel to be honest!