I'm an iOS Developer working on a project that uses Fabric ad I -absolutely- hate it. Maybe something is wrong with our integration, but I hate the fact that any run of the XCode build runs the Fabric Mac app and you HAVE to have it running, or else your XCode build fails. This doesn't help when your Fabric app crashes sometimes or isn't seen by Xcode for some reason, so every now and then my Chrome browser will just re-direct me to Fabric's website to download the SDK and I'll have about 20 tabs open before force quitting & relauncing the app. I like the idea of housing a lot of useful dev tools together, but hate having such a large overhead around it to do so.