Pros
Disclaimer: Your experience will be very different depending on which country you are working in, as they are all individual companies which have been bought by Digitalist Group. I'm talking about Digitalist Sweden here.
Open culture, great benefits. focus on learning. HR will really listen to you and try to help with everything they can.
Great clients: NGOs and other companies with "good" goals.
Contributing to open source.
Cons
They are always talking about "silo breaking", but we are the biggest silo company of them all. Every country is doing their own thing.
Specifically Sweden needs to get a clearer vision and respect the agile workflow to not drift off into a code sweatshop.