Basecamp is cancer. There isn't a team around that wouldn't be better off on Asana, or GitHub + ZenHub, or Atlasssian, or Trello... or anything else.

Would gladly dedicate 5 hours per week in training people on alternatives for free, if it meant I never had to go into a client's office who used Basecamp. The amount of busy work and slop and inefficiency it allows... I get people are blind to better options, but seriously spent a few hours researching and trying the tools. A stitch in time saves nine... measure twice, cut once...

Please compare it to using other tools and see for yourself.

Do you enjoy not having any sort of best practices process defined in the tool because something is either "done" or "not done"? Does the concept of phases, or different disciplines working together on an issue sail over your head? Do you frequently ask things like, "Why do you need UX, and QA?" Would you rather just say, "F'in Devs are late again" without being called out on not having requirements or copy or design ready in time? Great, Basecamp is your tool.

Do you love hearing yourself talk in your daily status meetings where you go around the room asking people who would rather be working what the progress of each item is? Secretly, do you feel a tool that clearly showed the status of issues to everyone any time they logged in would threaten your job security and prevent you from looking busy when the VP came around? Great, Basecamp is for you.

Does the thought of actually understanding what is going on, getting a handle on the complexity of the modern office terrify you? And do you hate change, so much so that you still use your AOL account? When you go out to dinner, do you insist that they bring you a bladed-spork at every meal no matter the restaurant so you don't get confused as to which tool is for eating soup or cutting your steak? You'll love Basecamp!

Do you want all of your data in one place, free from being updated, or updating, or syncing, with other systems? Do you enjoy manually entering in information twice, or reducing highly skilled developers to typist / copy-paste bots? Is your favorite thing when you get to yell at others because you updated the dates or requirements in your tool, but not theirs? And, do you have no concept why tying issues to code checkins is valuable and productive for the company as a whole? Oh man, Basecamp is for you!

I was a HUGE proponent of their software up until like 2008... when better tools came out, and each new revision of Basecamp I feel like they are doubling down on their backwards-facing, lock all the data in one place, never play nice with any other tools mentality.