I played Perfect Dark 64 nearly everyday for at least 2-3 years after I discovered it's existence. I got it as a gift, had never heard of it, and had no clue it was the spiritual successor to Goldeneye, the game I previously played every day...
I was hyped for so long for PDZ, I remember the months leading up to the Xbox 360's release, looking at every screenshot and thinking "something feels off...something looks lifeless about this game"...but I reassured myself the prequel to Perfect Dark, my most played game of all time probably, would be perfect.
It was shit. At the time I played it I enjoyed it, but it didn't even come close to matching the original. The single-player was so forgettable, the multiplayer was fun for awhile, but I put the game down after a few months while my 360 collected dust.
On a lighter note however, they did a great job porting the original to 360, and I would love to see them get another shot at a sequel, but I doubt any of us will live to see it...