I use Google Analytics since it went live and I find it quite useful. My main problem are the titles of the various reports. I understand where Google Analytics come from (Urchin) but things are pretty hard for me to find. For instance to find your referrers, you have to follow one of these paths:

• Marketing Optimization » Visitor Segment Performance » Referring Source
• Marketing Optimization » Marketing Campaign Results » Source Conversion

I can’t remember this for the life of me. I would prefer a title like “Referrals” or “Came from”, because now I just click around until I find it :-)