If you're watching this for anything other than entertainment you will be disappointed. The story is lacking and shows some inconsistencies and you can no longer make any sense of their abilities or power scaling. Aside from that you will enjoy this anime if you enjoy hearing people scream and kamehameha blasts.
Most viewers stick around because they grew up around the whole dragonball franchise, I believe it was the first of it's kind to take on powering up and transformation genre. Dragon Ball was the pioneer at the time of this kind of anime genre but there are many more that have come out which are better but we're not here to talk about them.
I found myself enjoying the Future Trunks arc and the tournament arc the most, anything else in between you've probably already seen from the movie 'Battle of Gods' and Resurrection Frieza and I found the movies did it better.
