I enjoyed DS3 for what it was. The lore went surprisingly deep and the story was fun, although the love triangle was too distracting and the co-op partner was pretty much absent from the story if you weren't playing with another player.
It was yet another game that tried to stray from its roots to chase the CoD golden goose. That generation was full of them (I remember being extremely disappointed by Resident Evil 6 and Ace Combat Assault Horizon). Dead Space 3 was, IMO, the game that managed to strike some semblance of balance between its two souls, at least compared to all those other COD copycats. Of course, that doesn't mean that it was a great game, or even a good game, but I appreciated it for what it was.