Houses the whole design process and supports a ton of integrations: Drive, Sketch, InVision, Figma, Marvel, Adobe XD, Atomic, and Airtable.
No prominent cons come to mind.
There's always been a gap between the way process is represented in a brick-and-mortar design studio versus within the digital landscape. Purple.pm really fills that void by allowing digital designers to house their entire process (research, text, lists, images, prototypes, links, and more) in one place. It's a studio in the cloud!
In addition to collating the entire design process and providing a high-level overview (the project phases, sidebar menu, and zoomable interface are great for this), Purple.pm has some nice features to support conversation and collaboration. It allows designers to tell a story, present their work in context, and keep discussions and critiques in scope. All of this comes together to cement a direct relationship between project objectives and outcomes.
Purple.pm is now my go-to tool for including collaborators and clients in my work and presenting deliverables to them in context. They love it and are beginning to value design much more when they can understand the process that goes into synthesizing the results that end up in front of them. Brilliantly built product!