I am a huge fan of the Borderlands series and I love their characters and their stories. I still occasionally run around with my level 72 siren in BL2 just because it's fun.
I'm less than impressed with their announcement to go exclusive for six months, even though it doesn't affect me because I'm on PS4. I just don't like the decision and as a result, I'll likely not purchase it for a while. I feel like if there are repercussions for them making that decision (and if enough people do the same) they'll be less inclined to do this in the future.
I would never have pre-ordered in the first place, because I've broken that habit. I'm at a point in my life where I won't pay for a game that I can't see running and know if it's worth the price or not. I feel like too many developers have abused this mechanic and I just don't trust them. But that's just me.
All that said, I'm very excited to eventually play it.