Short answer: Spreadsheets work for small, desk-based teams tracking a short list. They break down for teams on the move, because nobody updates them in real time and they have no notifications or conversation.
Pros
Familiar and flexible.
Cheap or free.
Good for analysis.
Cons
Hard to update on a phone.
No notifications or reminders.
Conversation happens elsewhere.
Version confusion.
Frequently asked questions
When should we move off spreadsheets?
When updates lag behind reality or people stop opening it.
Try it with your team
Check when your task spreadsheet was last updated. Please Do It is free for 30 days, with no credit card required.