Trello has become indispensable to my 12-engineer team in a 40-person startup as a way of visualizing all project from a high-level view and implementing a kanban board to control workload.
When we tried Asana we were never even able to get buy-in from the whole organization, so I can't say for sure how it ultimately would have worked out, but it certainly seemed to lend itself to too many people dumping too many tasks on other people without awareness or respect for overall priorities and the value of focus and procedural workloads for engineers. Perhaps this is a unique problem to tech startups that are only 30% engineers/designers, but in my mind it weighs heavily.
When we tried Asana we were never even able to get buy-in from the whole organization, so I can't say for sure how it ultimately would have worked out, but it certainly seemed to lend itself to too many people dumping too many tasks on other people without awareness or respect for overall priorities and the value of focus and procedural workloads for engineers. Perhaps this is a unique problem to tech startups that are only 30% engineers/designers, but in my mind it weighs heavily.