I wouldn't say it was rubbish, but I will say I was disappointed with it (as a life long XCOM fan). Primarily because the microgame (tactical squad based combat) was good but the macro game (the strategical game in the world overview) was weak. Base building was basically non-existent compared to the original XCOM games. Instead you stumbled across existing bases and "build" on of 3 facilities in them. The research tree was weak. A DLC introduced the "shooting down UFO's"-mechanic but overall all of the DLC was just focused on more different enemies and story lines and did very little to improve the worldview game.