How to actually evaluate a SaaS tool — skip the demo, get a sandbox and break it

if you're seriously evaluating any saas tool, my actual practical advice: skip the demo video, ask for a sandbox account and try to break it yourself. you'll learn more in 30 minutes of real use than from an hour of a sales call. the things that break are the things you'll be living with for years. anything specific people test for when evaluating booking tools?