I've never had sip of sunshine, but it could be a matter of freshness. I've found that some beers, lunch for example, can go from great to good in about a week as they settle out. Posted from my iPhone/Mobile device
Could be any one or more of the above, but likely kept cold and I would hope it would keep in a can for two weeks. I will definitely give it another go, especially if found on tap around town.
Right now I have a Julius in hand that has likely been in the can for less than 8hours....Yummy!
Hard part will be to give them up as gifts later this week....well....time will tell.