Ventajas
Great work-life balance and work-from-home option on Mondays and Fridays. Great place to learn about the industry, as ComEd/Exelon is a leader in its field. Generally a very positive work culture, with a few toxic people here and there - no different from any company. They also encourage you to move around to different roles if you so choose, which is really supportive and unique among companies.
Desventajas
Pay is FAR below the industry standard. Lots of PMs are jumping ship for $30K - $50K more pay doing the same job in other companies - including ComEd's consulting firms. And now, it appears that the annual bonus is going to be partially cut by the new "high performance workforce" initiative - thereby eliminating the final incentive to stay. Unfortunately, I have now joined the ranks of those looking for greener pastures myself. I'd love to stay, but I can't ignore the ability to make $40K more elsewhere.