Is conquest worth playing and how long does it take?
It depends on the maps. If it is the legendary shark map than yes it is 100% worth it.
Not a bad way to work on XP and stubs before jumping into Ranked. Don’t do it for that Hank Aaron card though - as someone who complete, I can attest that card is hot garbage. Playing my 83 Judge over him, and it’s not even a tough call. Should have had a better final reward.
Do it for your daily "innings with (insert team here) players" challenge. In a month you'll have it done.