Pros
Work life balance. 9/80 schedule, flexible start and end time for the day, and one of the best maternity and paternity time off in the US. High pay and good benefits. 401K match program and pension. They hire you for the long run. It's very difficult to get into Shell, but once you're in, they invest in you and you can have a long career with them. The turnover rate is much lower than other companies. Shell is an energy company and is investigating in climate friendly energy sources. Much more than oil and gas, Shell agrees with global warming and has a plan to help.
Cons
Shell is divesting in some of the smaller manufacturing plants, so choose the location wisely to not get sold to another company in a few years. Shell hires future leaders and values leadership skills over technical skills for graduate hires out of school. Only problem is not everyone can become managers so there's a bit of mismatch between who HR hires, and who the managers want to be hired. Shell needs more people who want to have a technical career and stay engineers.