Mmkay so I played about 30min of it I gotta wait for some friends and stuff. Also I'm Nisha :3... So its pretty much as expected, borderlands with a new environments and stuff. I'm really liking the feel alot and it felt different to me while I was playing it Story is pretty interesting as well, and man the humor is still really good xD Good thing about it is that you're thrown straight into the action rather than walking around for a bit. Overall its really good so far Feels kinda new and I'm enjoying it.
Finished it, it's pretty freaking good, first halfs a bit eh but 2nd half is just as good as BL2 imo. Playing it with my brother on split screen I play as Claptrap and he plays as Wilhelm both of which are really good (although Wilhelm appears to be a better version of the commando class). The new stuff like no gravity and the cryo element are really awesome. Story ties together well also. Overall it's pretty good and you should buy it if you liked BL2.
One thing I really liked about this one was how they managed to make Jack seem like a good guy, even after all the shit he pulled in 2, and made Lilith look like the villain (Betraying you, Punching the vault artifact thing into Jacks face and maiming him), It really fitted the theme of the game and kind of puts the whole thing of there's no good guys thing in place really well. It did Jack's decent into madness really well too.