The story was good, the Terrarium was interesting, the BBQs or Blueberry Requests were different, you could the the BP from doing the BBQs to get popular Pokémon added into the Biomes which is nice but that where the okay stuff stops. To add a starter Pokémon into a Biome, like Charmander, Pikachu, etc... it costs 3,000 BP and you only get 20-30 BP per request so you have to spend a lot of time completing those requests to reach that and you can get even rarer Pokémon for more BP.
The part that really aggravates me about the DLC is the Elite 4 battles. They essentially make all of the Elite 4's Pokémon stronger than yours despite them all being 20+ level below your Pokémon, assuming you have gotten your entire team to the Max level of 100.You spend all this time building a team of diverse Pokémon and working to get them all to to level 100 just to get 1 hit KO'd by a Pokémon 20+ levels below you, not to mention, you cannot 1 hit KO an opposing Pokémon with a Super Effective move. The double battles are stupid and pointless but this is the only type of battle possible in Indigo Disk.
I would much rather go back to there being a completely new Pokémon game every year then putting out DLCs that are stupid.