I loved it, it's unique in its own way. The ironic thing is that I never used any other weapon except for the Hutchinson A3 (not the automatic cheap one) as I became attached to it and it seemed the other weapons were weak. Although, the nail gun weapon was amazing.
Golden Gun mode was definitely the most fun gametype and the most effective way of earning cash.
163/164 games completed (including DLC)
Completion percentage: 100%
Latest retail completion: Dragon Age II
Latest arcade completion: Dust: An Elysian Tail
Currently Ranked #1 on Achievement Completion Percentage Leaderboard on TA