1. Destiny: I'm glad that i didn't purchase it digitally, such a waste of time, already traded in
2. AC: Unity: This could've been one of my personal greatest games of all time, but Ubi failed hard time on the technical front and - even worse - didn't manage to step up the gameplay part as promised. I put it back into the case and will continue to play in summer when most of the bugs and technical issues are maybe ironed out.
3. MCC:
I nearly bought the bundle, but instead went to a friend at launch day and waited half an hour to connect to a MP patch, eventually we gave up and tried co-op which also had many problems. We decided to wait 3 days, met again and had the exact same experience. Yesterday my friend texted me that he wasn't able to get into one single MP game even one week after launch and therefore traded the MCC for GTA V. This game can still sell me the One, I'll look into it next month.
4. Driveclub:
I think my all time high for hype was in February 2014 but I managed to settle my expectations until release. Since I got home a few days after launch I knew that online was and still is a mess, so I treated the game like a normal (offline) arcade racer. The campain was solid albeit a bit short, graphics a stunner and the handling perfekt. I traded the game in for COD: AW and will buy it again when everything works and with all DLCs since it's still a massive letdown from what I originally expected.