Just did my first ever 11-miler yesterday and it felt much better than my 10 miler that I did last Monday. The weather was perfect, not too hot, not too cold and there was a slight breeze along the trail that I normally do my long runs on.
Only thing I wish for when I run 12 miles and when I attempt my first half, which is btw, only TWO weeks away, is for a much better pace. I just can't seem to get faster, the longer mileage I run at one time. I came in today at a 10:34 pace. I was hoping for more like a 9:40 or 9:50ish pace for the half, but I'm not sure if that is going to happen for my very first. I might have to work up to a quicker pace for the next race that I train for.