Pros
I can't say enough good things about RTI. The people I've worked with are professional and supportive, leaders have a "team" mindset, the pay is good, the benefits are good, the work is meaningful, the schedule is flexible, people can work reduced schedules if they need to, the offices are nice, they provide the resources needed to optimize work efficiency, they offer remote, hybrid, and in-office options, and the work-life balance is great. They also care about equity and diversity and fair treatment of everyone.
Cons
Availability of work is based heavily on the availability of federal government research contracts. If they're cut at the federal level, layoffs happen. Growth and proposal opportunities depend partly on the project teams people are on.