Ive rushed the game doing the quests on the job boards(only in wellspring[sounds a big like goodsprings doesnt it eh?]) and completed the main campaign as well as scavenging around before i went to subway town.
Time? 10 hours
Difficulty? Nightmare
Cons
1. Nightmare is meant to be a NIGHTMARE not a little fun place where you can 2 shot kill stuff with a shotgun OR run around them fat slow bosses who cant get their aim together so they dont shoot at all
2. The game feels like they put tons of effort at the start then they just started slacking off near the end especially since you only had what 4 quests before you assaulted capital prime.
3. Was capital prime feel like an isolated little electronic army camp OR an epic covert ops mission where you go around a huge massive epicly well designed and HD city?
4. The game felt too... wave-ish like, for instance, the muties dont spawn unless u reach region X or the authority wont attack you until region Y

i wanted it to be... RUN FOR UR LIFE THERES HUNDERDS OF MUTIES
5. The ammo just felt a little bit too well placed for a post-apocolyptic world in which nothing really exists anymore, also waaaaaay too much ammo, its like you could finish the game without stocking up on ammo at shops :'(
6. Nightmare should of nerfed everything, the HP of enemies, enemy damage, number of enemies, weakened your damage, reduced lying around ammo, etc stuff to make it harder, i like hard games

7. The game was waaaay tooo predictable, you would know when the enemies spawn or charge you, or when the next boss will come or even when the end of the game was coming, oh god.. this is the end... i know it.. press e(cinematic starts) , damn it

Pros
1. Rage card game was fun and nearly all the other minigames(racing,MBTV, rocket racing) xD a good touch
2. The driving was quite good, though the weapons are little bit OP(pulse cannon, 1shot authority cars)
3. I had fun, it had to end(a better ending wud of been nice), im looking for a sequel, i want to know what happens next.
4. Each individual character was unique and very engaging as well as the nice accents and voices.
7 Cons VS 4 Pros

it was fun while it lasted hope it was for you as well. (waits for sequel)