I have been enjoying the game also and havent seem to experience the issues that people are bleating about constantly on here. I am in Australia though and work during the day so maybe i miss the prime time for the US which may cause issues.
The only problem i had at the start was rubberbanding in away missions. This seems to have gone away now either by the patch that was released yesterday or by me turning the graphics down one notch from better quality to faster performance.
I am having a great time playing this game. I only come in to check the forums when the servers are down. I don't get bent out of shape when they do maintenance because I know it will be for the best in the long run. The sense of entitlement around here is staggering and should not be taken as the majority opinion of players. Live long and prosper!