The biggest missing feature is drive cloning, which is when you create an exact copy of your entire hard drive. However, it does lack a few important features.
For the most part, it's effective and reliable. Time Machine is a great way to create incremental backups of your Mac. Here are several great alternatives to Time Machine for backing up your Mac. But there are plenty of other options out there too, and many of them have features that Apple's default backup app just can't compete with. It's ready to run and makes a great option for backing up your computer to an external hard drive. Time Machine comes preinstalled on every Mac.
