Overclockers Club published a review on the Humble Indie Bundle 12
A quote from the article:
With the individual reviews covered, does the Humble Indie Bundle 12, as a whole, deserve to be purchased, and at what level? Two of the three base games, Gunpoint and Hammerwatch, are both titles I would recommend to anyone interested. The third game, SteamWorld Dig, has the issue of being a game for explorers, so if you are not one, you may not want to get it. If you are though, it is pretty easy to recommend. Of the BTA games, LUFTRAUSERS stands out the best, as its addicting gameplay is something I think many gamers would enjoy. Papers, Please is also a game I recommend picking up the bundle for, if you are ready for its style of gameplay. Gone Home left me undecided. It is a well-done, story-focused game, but it just never quite grabbed me, as some others have. Still it is well done, so if you do beat the average, it is worth checking out.Humble Indie Bundle 12 Review @ OCC