Pros: the physical site - beautiful, quiet, etc., sort of university culture.
Cons: management didn't follow through with just about anything they did.
The site is great - the hills above U.C. Berkeley. The offices were a cube farm with coffin sized 6'x8' cubes in the building with shipping / receiving. There is an onsite cafeteria, but the same company runs it that runs food service for the University... Management didn't seem to know which way to go - sent us all to a couple of months of Agile development training and then bought a project management package tied to waterfall development and required us all to work waterfall projects. Published coding standards then said things like "you should have been doing what everyone else was doing." Seemed to give the development staff all of the responsibility for a successful project, with none of the authority or cooperation of the owning department to get anything done. There were a lot of "adhoc" projects with no clear requirements before coding started, leading to lots of "feature creep" and unending projects. I learned a lot about radiological experimentation and the Dept. of Energy regulations. Being a research site, they had one of just about every environment you can think of, so I also learned quite a bit about different environments - Solaris, Java, Oracle Forms, Telerik tools, .Net, MVC, Silverlight, Azure, etc.