It's not as epic as Infinity War or Endgame. However, it's incredibly enjoyable & really cool to finally get a glimpse into Natasha's past. Yelena, her "sister" is fabulous and I'm assuming will be continuing in the MCU.
Admittedly, there are several movie cliches in this and it's not entirely original, but it's still fun and moving at times.
I think it would have had a better impact of it was released last year before the Pandemic, but what could be done about that.
Like I said.....not epic, but definitely worth the time to watch.