Going to Google Reader and getting a 404 page is like going to a childhood favourite theme park and seeing it full of corpses. Sad times.
I still remember the day I switched from iGoogle to Google Reader. It was like taking training wheels off a bike and realising that not only did you not fall over, you went further, and you went faster.
That said, I've enjoyed using Feedly more in two days than I've felt like I enjoyed Google Reader at all in the last year. I've suffered real RSS fatigue, where "mark all as read" felt like some sort of weird drug to combat addiction, setting off signals in my brain akin to pleasure and relief.
That was a bit dramatic. I only loaded G+ to post a picture of a cat sitting on a donkey.