I have a Quest 1. The game selection is alright but expensive for what it is, but never found an unmodded game that kept my attention for more than ~5 hours - they are mostly VR demos without staying power. Modding is a huge pain in the ass, and every update breaks it again.
I used to use it regularly for BeatSaber + Custom Songs (though its underpowered so can't play all custom songs). For a while I was able to limp along by avoiding updates, but it eventually was broken by one of them, so I could no longer change custom songs. Finally I tried to fix it, failed, and tried to uninstall and just get unmodded BeatSaber working again. Quest decided to update, and now it doesn't even load the home screen - just a loading icon and then infinite black. I guess I'll try a factory reset, but I'm so frustrated with it I'm not sure it's worth trying to salvage.
It feels like Facebook is deliberately hostile to modding because they want to fortify their walled garden.
I will never buy oculus again. Steam's VR is higher quality, has much better game selection, and is much easier to mod as you want. My friend has an Index and I prefer it in every respect - the only downside is that it's wired and more expensive.