Pros
Despite comments to the contrary, I personally feel the compensation and benefits are competitive, especially considering that UWM is one of few mortgage companies that will hire and train people for UW roles without prior experience. There's plenty of growth potential - as with any company the opportunities available vary based on business needs, but people that put in effort while they're there and and are able to follow directions/meet expectations are consistently rewarded with growth opportunities and financial incentives when business needs support their availability. It's pretty cool to be able to work on and underwrite transactions that make a huge difference in other people's lives, and if you take pride in your work and enjoy work that entails a high degree of attention to detail, reading, resource utilization, and memory/application of a long list of guidelines/requirements, you will likely find the work to be fulfilling.
Cons
The job and culture are extremely demanding (as are careers in finance and the mortgage industry in general). If a high degree of flexibility, work/life balance, and/or low stress at work are important to you, this probably isn't the right place for you.