I've run iodéOS for at least a year by now.
It used to have some bugs that mildly inconvenienced me,but they have all been fixed now.
I really like it. It just works.
Uninstallable default apps just means that the stores (f-droid / aurora), browsers, camera and lots more can be removed in the settings, so you dont need to root access to do so.
Don't want the default email client and contacts app? Just uninstall them from the settings. Takes a reboot to take effect.
If you need them again, just go back there, install them again, reboot and you're golden.
Attaching a screenshot from the "Preinstalled apps" page in the settings.
Feel free to ask if you have any more questions.