Pros
People, especially those that have been with Workday for a long time and embody the culture Workday is known for. These people are bright, humble, kind-hearted, and willing to go out of their way to help me be successful. I left Workday with many lifelong friendships and connections. Although it wasn't so much the case by the time I left given the size of the company, I had many opportunities to make significant impact on customers with the various products I led, either from scratch or enhanced. Being a PM at Workday for 6 years gave the kind of enterprise experience that many other companies value and seek. Despite my no longer being there, I am very grateful for my time at Workday.
Cons
Leadership quality, from front-line all the way up to the executive ranks, is sorely lacking. There was no clear product strategy/vision, priorities were constantly changing, and politics were rife. Workday grew too fast and brought in too many external folks that had significant responsibility/power but had no idea what Workday was about. What's worse was that they didn't trust nor respect their employees' input and experience. As a result, the culture Workday is so proud of is rapidly deteriorating. Many talented people are leaving for other opportunities.