I guess it's really personal taste. Nobody really thinks it's well written, just entertaining and that's something that's entirely subjective. Personally, I loved all the character interactions between the Legends and especially between the Legion of Doom. I thought the ways they messed with history to be hilarious, at times. I thought Doomworld was 10X more interesting than Flashpoint (the show version, I mean). Evil Rip Hunter was a great villain and Mick Rory's development was humorous and interesting. Plus, I thought all the action was about as good as it could be with their budget, which doesn't necessarily mean it's good (as Supergirl proves) but I still think it was entertaining.