Finally got the hang to play through it aswell. Found it allright, a bit better than Honest Hearts (which just didn't work so good for me).
The writing was excellent again, I just try to overread stuff like lolpenis jokes and so on (almost every second voiced "person" in this dlc seemed to have issues with sexuality...) and the LOL!!!!11 stuff was thankfully not that much. The german translation was horribly bad again, but the voice actors were really good. I wish, they'd had used some of the new ones in the vanilla game.
The actual gameplay was ok-ish as I do some exploration occassionally but don't want to visit random dungeon #23920 all the time. The minibosses were really nice. I appreciated the idea of so much upgradable/exchangable stuff, it felt a bit like Torment having to decide which organs I want in my body and which not etc.
I still don't like the artdesign of some of the weapons or armors there, it's too over-the top or awkward looking for me (shiny-axes, science fiction trooper armor! etc) but it was ok since I wasn't forced to use these items. I played on Normal difficulty and didn't find it THAT hard like some people complained about. I mostly used my Ranger Suit, an Automatic Rifle from Dead Money (I love this thing) and crafted the ammo for it in the sink.
Didn't use those machines in the Sink so much other than upgrading them, I wish they'd have putten more "normal" persons in exchange there (seriously, even ending slides for them?
) with actually some interesting things to say (like the dialogues with the Think Tank and Moebius).
All in all it was a bit better than I expected, but the setting there just isn't my sort of thing. It was good nonetheless, but here's hoping for Lonesome Road and a good, worthy ending.