>>333516396
Look up the specs for yourself. Q2 is surprisingly good considering the price difference but do keep in mind that you will probably end up wanting to buy a proper strap and a cable or battery so add that to the cost.

You need a FB account so if you don't have one make it before you order to make sure you aren't locked out. If you want to use link then you need the Oculus app on your computer. after singing into the account once you don't need to interface with FB at all. As for what data they are getting from you I honestly have no idea but I also don't particularly care, they always make the EULAs vague enough that you will never really know.

I chose the Q2 and don't regret it at all. Conversely to >>333516703 I have never had an issue with it and constantly hear people talking about RMAing Index controllers and speakers. There are obviously more people here with Indexes so it's somewhat expected but it still seems high to me.