Not so great stuff: my knees were making their displeasure known.
Just curious, are you using something like Speedplays that have a lot of float? My Speedplays really helped my knees and ankles.

I have been very happy using a camelbak for mountain biking, but I gather that's just not done in road riding.
It is here! We have some brutal temps in the summer and I've known fellow cyclists who got too dehyrdated by not using their Camelbacks. I'd rather be safe than sorry.