I'm a longtime GTDer and Things users these past 5 years or so. I'm in a new job and tasked with rolling out a new shared software (we're a Mac house), and my plan is to get this tiny <5 person team (with many vendors) onto GTD asap. They have Trello but never used it apart from the one GTDer who has moved on and swore by it—thoughts? And Asana I know from another project manager using it, but it wasn't well-received. People found it complicated, but I think that's largely because the PM wasn't a GTDer and no one had a shared context for organizing their work. I am grieving the fact that I will likely migrate fully to one of these two softwares and off of Things, only because it doesn't allow sharing. It's just so important for me to have one system and not divide personal/professional especially right now as my parenting/work balance is very fluid. I welcome your reco's, Trusted GTDers!