Can't see where all the hate come from, works exactly like a version of Human Revolution for mobile, great world-building, small and dense map with all the different paths to play with and lots of side quests. The game is short so doesn't hurt, story is less atractive, especially since it ends with no conclusion, but still is a nice add to the universe.
The only downside i saw was the simplified inventory system and the PC version having weird controls, but i managed to get used to early on. I didn't encountered any major bugs, only some rare visual glitchs during takedowns.
Considering how publishers tend to ignore other plataforms when releasing mobile/handheld games, i was quite happy for beeing able to play this officially on PC, especially since you can't buy on iOS and Android anymore.