Man, I was very tempted to get Titanfall, but I did a bunch of research and found a few hitches.
1) It's 50GB. Come on maaaan....
2) Campaign blows so hard it doesn't even count as a thing.
3) Limited weapons. Loadouts work for BF and such but for 6v6 small arena twitch shooters like this? Dude you need like 9 guns a match to keep it interesting. Forever mixing it up. See: UT, Q3, Halo.
4) Only two modes people play and they are barely different.
5) Watching on twitch I saw most matches lasting 8-10mins and then 3 mins connecting for a new match. That is a bad balance, though they say they're working on fixing up the matchmaking.
I think the game could potentially grow out of 4 & 5, but because it's from CoD guys you know 3 won't change, and right now the game just isn't worth it. Honestly, PvZ Garden Warfare looks like 5x as interesting. Though I just got BF4 Premium so I have a lot to dig into anyway.