The visit to the Lawrence Berekeley National Laboratories went quite well. The life sciences division is located on a lush hillside east of UC Berkeley, necessitating access by car. The labs themselves are very modern and spacious. The PI is very enthusiastic, with many big projects available to me. I met with a few people in the lab, gave my talk and had a very full day. Eight hours later, I'm exhausted, but I can say everything went well and this would be a great place to do a post-doc. It'll be a different working environment than I'm used to but this is a unique opportunity.
Life in Berkeley will be expensive, but fun. The Bay Area seems to have a diverse population and great weather. I even have some relative near here.
In all, went much better than I had anticipated!