Pros
To be perfectly honest, there are those that see success here. If you happen to be inducted into the clique, which means losing any sense of a personal life, there is some good opportunity to make money. Oh and free lunch... but don't expect to be able to leave to take care of things during lunch.
Cons
One could legitimately write a book about this place-- some have attempted in short form (just Google alliantgroup Houston Press, they've done well to try and bury the search results, but you'll find it). Where to start... Leadership violate their own corporate tenants on a daily basis. Transparency is a buzzword that gets thrown around but when a worker bee inquires about something, they're seen as 'not fully trusting that leadership has their best interests at heart'. If you're in a commission earning role, don't expect to be able to see any of the behind the scenes documentation or justification for payment (or lack thereof). Again, if you request it, they take it as an insult. If you have noticed the trend in the 5 star reviews, you're not crazy. It's a thing. Employees are "encouraged" to write positive reviews. Some senior level employees have recurring calendar reminders to flood Glassdoor with positive reviews that fawn over leadership and the "opportunity" and how it's "not for everyone". Simply put, if you do decide that alliantgroup is your first or next stop, be prepared to drink your fill of the kool-aid. You will deny yourself a great many things including family life, personal time, social life, and very likely your sanity. I've never encountered a company where there is a regular meeting around town of it's former employees who sit around sharing war stories and thanking God they aren't working there anymore.