So, I'll start off with my initial thoughts of the game so far given that the full campaign has only just been released. *Warning* there will be some slight spoilers.
The good: I've just started to get into the tabletop version of Warmachine and so far what I've played does a good job of keeping to the core mechanics. The graphics are pretty good for a kickstarter game, some CG cutscenes would have been amazing (especially of the duel between Orsus and Sturgis) but that's really asking too much of a limited budget. The gameplay is well done, with actual thought being required so that you don't open yourself up to enemy charges or block your own movement and/or line of sight with an ill-timed activation. That's one aspect of the game I've really enjoyed so far which is good because there are a lot of minor areas that need at least a little improvement.
The bad: The story. The story is almost cringe worthy in its absolute lack of originality and, so far, bad presentation - I mean, another superweapon that could change the course of the war / end the world as we know it plot line? Really? Even the opening scene almost made me facepalm when Jakes stated that "I...I killed Commander Stugis". My reaction was no, no you didn't. I haven't even played the storyline yet and I know this, stop being a drama queen. Given the fluff available in the books I was really expecting better, even the game characters seem almost caracatures of themselves compared to their presentation in the books. There is one twist that might have been interesting but since anyone with even a nodding acquaintence with the game likely knows what happens to Stugis it's a moot point. I would have liked something more along the lines of the old Dark Omen game where your actions and decisions decided how the story progressed and what units were available.
The voice acting isn't bad, not great, but somewhere in the middle and they did seem to match their characters. However the pronounciation of Brisbane as Bris-bane really irritated me for some reason.
Since I haven't finished the campaign yet I can't say the storyline is difinitively horrible but I'm not hopeful for a turn around though if it does happen I will edit this review.
The mediocre: A couple of small issues that will likely be fixed in future patches, the UI really needs to be adjustable with at least a scale though being able to move, fade or remove selected elements in addition would be better. Having subtitles not take up almost a third of the screen would also be nice. The cost is about average for the standard edition but considering there's a lot of DLC in the works that you'll have to buy seperately... well maybe the DLC will reasonably priced.
I'd recommend this game if you're looking for something fun that will likely focus around multiplayer battles. I haven't come across many bugs at all so far, mainly just a few with speech and sound clips not playing or not playing quite right. Definetly no game breaking bugs which is great. Whatever you do you should not buy this game expecting a great or even good story but the gameplay is solid especially if you enjoy mulitplayer battles.