You'll love playing it, but hate almost everything about it.
TL;DR The game needs to be fixed and needs more content, wait a few DLC releases then get the game
The Gameplay is the best in the series, the gun mechanics are amazing, and the enemies are more fleshed out than they've ever been, but the lack luster campaign, terrible main villains, and Terrible story, will leave you going "Why didn't they do this instead" about every 10 minutes, The story is so disappointing after the amazing story in borderlands 2, it really just kills your spirit, I totally recommend that you buy this game *in a year or 2* after all the dlc's have come out, and you can fully play the game with all it's potential, because as of right now, unless you are an absolute drop dead borderlands fan, who just can't wait to scratch your loot itch, Borderlands 3 isn't worth it right now, It's got launch issues an incredibly buggy multiplayer, and an absolutely terrible main story which will hopefully be made better by the DLCs which sucks to say because that means you have no choice but to purchase extra content in order to have a good time. So Please wait to buy.