Eh, they're alright, but you can usually find something better on F-Droid. As far as I'm aware, they're mostly the AOSP apps with slight tweaks, so they might look familiar
Apps where I use the default:
- Calendar (alternatives on F-Droid, like Etar, are virtually identical)
- Camera (there's OpenCamera on F-Droid, but I don't know, not really using the Camera much)
- Clock
- Contacts
- Dialer
- FM Radio
- Messaging (doesn't look super great, but don't use it much)
- Recorder
Where I didn't write anything, there's probably something better out there, but I rarely use these apps.
Apps which I've replaced:
- Browser → Firefox
- Calculator → Calculator++ (probably overkill for most folks, but I do think the default calculator app is terrible on virtually all Android flavors)
- Gallery → Fossify Gallery
- Files → Material Files
- Keyboard → HeliBoard
- Music → Booming Music (pretty much just because I want album-shuffle)
- Trebuchet Launcher → KISS (personal preference)