All of the negative reviews on here are 100% accurate. There hasn't been one I've read where I felt anything said was unfair. Most of the positive are from consultants asked to leave positive reviews, not direct employees, or from managers told to leave one.
I won't repeat what has been said over and over, but I will say Mondo is not a positive environment and does not prioritize their employees mental health. From the top down, it is an unhealthy culture, and they will never retain good people with what is in place.
It can definitely be a place to get your start and learn valuable experience as long as you find your footing (training is nearly nonexistent). However, after a year or so you should move on to somewhere that values you much more. Trust me, there are plenty of places out there. Everyone who joins either leaves after a year or two, or they become for-lifers and really drink the KoolAid. I recommend protecting your sanity and not becoming the latter!