Pros
-The org is pretty well respected in the industry -Some good topical variation in your work -Learn a very unique skill set of writing, speaking, event organizing, and advising/consulting
Cons
A word of caution if you are just graduating and looking to work at E Source as a researcher. They target new grads. They will help you develop a very unique skill set which is actually great as a career jumping-off point. But don't expect this to be a long-term career path. There's a lot of pressure on a small group of researchers to deliver, meanwhile a huge entrenched management class that spends all day in meetings amongst themselves. You'll constantly be asked for more output and to follow new procedures/requirements by this management class. There's virtually no career path, you might get a few promotions but at most, after 3+ years they'll make you a 'people manager' of one or two people which is how there becomes a huge management class with very few people actually doing the work. TL;DR : Ok place to learn some skills but not a place to build a career.