Pros
Workday is a fun and challenging place to work. Everyone there is top talent; Workday does not waste its time with mediocrity. Expect to have a lot expected of you and to be surrounded by people who strive to better themselves and learn something new every day. Also, the work/life balance and flexibility is as good as it gets. Work from home whenever you need to, as long as you get your job done.
Cons
Workday is still a fairly new company and is still growing and learning. I think they need to focus on their benefits offering at their regional offices. Headquarters may have free parking, but in Boston it's pretty standard for a company of Workday's size to offer a commuter subsidy. However, only the pre-tax deduction is offered. The 401k match just started in 2016, which is great. But, I hope it grows to be more than the cap of a $3k match. Also, the company has an unlimited PTO policy, which is great for anyone who is NOT in the professional services part of the organization. In professional services, there are billable hours targets that must be met to receive your bonus, and they only give you a 3 week PTO "credit" (i.e. any PTO time or other non-billable time, including the mandatory training and meetings, over 3 weeks has to be made up to achieve your target).