Pros
For the most part, partners and leadership are appreciative and nice. Your mileage may vary depending on the BU/geography. From a marketing perspective, it was energizing to see the publicity resulting from deals. You're exposed to projects across the spectrum, and there's definitely the potential to develop a transferable skill set. The new brand is sharp, modern and IMO stands out from other firms. New offices are sleek, and in Boston especially you can feel the energy.
Cons
Data entry^infinity. A lot of churn, so perpetually short staffed, resulting in a tactical approach instead of strategic. Extremely hierarchical/top down, with little to no growth opportunities. Much surface-level ado over buzzwords such as "collaborative." At the end of the day, it IS still a law firm.