Pros
Great experience and resume booster. Not a fun job, but definitely a spot that will enhance who you are. Perfect spot for a college student. Teaches you strong process management skills. Gives you the skills to be a very strong candidate for other companies. Great benefits. The pay is decent for a college student. Pay for part of college. Decent paid time off. The value UPS can have for someone is unreal. It just depends on your situation. I think this is a very good company to work for if you're in college. I don't think it's the greatest long term career opportunity though.
Cons
Not a great company to work for as a college grad. They require a degree for advancement, but don't value your degree. The company doesn't welcome personal ambition. You advance on companies terms. They choose the direction you go. Its a great opportunity for someone that isn't a risk taker. UPS creates an environment that makes employees believe they are the only opportunity out there. Also imply their pay is better than any other company, which isn't always true. Only promotes within. The management is kind of blinded by the outside world. This I due to no one ever worked for another company. There is a ton to learn from ups' processes, but they don't always welcome innovation. Working in small package operations is a very specific field of work. The only US competitors are FedEX and USPS. This can hurt your chances to switch markets down the road. UPS doesn't normally allow you to switch between their companies, such as UPS Freight. Pay raises are really bad. Really really bad. They are based on a qpr. If you hit your numbers your manager's review can cancel out your numbers, which results in a poor raise. If you don't hit your numbers you get a poor raise. You hardly hear about big time raises. Your pay slow increases over the 30 year tenure they expect you to be there. This isn't a bad company giving my negative reviews. It's more based on working while in college verses after graduating. I'm very lucky to have worked at ups. It helped me be very successful at my new company. No time off from thanksgiving through the New Year.