Pros
My first job out of college was an ADR at MuleSoft. The company had an incredible training program, 1 full month in HQ to learn the ropes. Some really talented people, especially in sales and service.
Cons
Competition, while healthy to an extent, was pushed too far here. "Radical Candor" became overused to the point of excuse borderline abusive behavior of reps by managers and team leads. People were consistently talked down to, and the strictness of rules (i.e. being even 1 minute late to a meeting meant being verbally lambasted in front of your peers) did not make for a very productive and empathetic working environment. Promotion track consistently looked like moving the goalposts, you'd be promised something next quarter and without warning or explanation, it'd be pushed out. Even one month of less-than-stellar quota achievement could push promotion tracks back an entire quarter or more. Some of this is probably better now that MuleSoft is part of Salesforce. Diversity at MuleSoft especially was absolutely atrocious: you could count the women of color on one hand, very few leaders with diverse backgrounds.