Pros
The people who are remaining are great people. If you don't have a job, considerate for that reason. But if you have a job and are looking, pass by as it is too unstable.
Cons
It's a company that has all the good people looking elsewhere right now. Layoffs and cost cutting in 2017 and 2018 have made the workloads heavy and perks are minimal to none. Benefits like insurance are bottom of the barrel. Having the resources to get your job done is a difficult task now. A really good company changed to a 'sweat shop' mentality in the matter of 6 months under Avantor. Morale is at an all time low and will continue to drop as more and more good people leave. A union is probably in the future, like at many other Avantor plants, and that says everything you need to know.