I have a Rift S, there's some pretty blatant issues, but nothing that makes it unplayable, for instance in Pavlov, character realignment isn't exactly the best, but it works for the most part, you have to look down every now and then for it to realign you.
There is also some ****y-ness with Oculus just straight up blacklisting USB hosts and driver versions even if they work just fine (like they did with me) so you might have to manually unblock your own USB host.
All in all I am very satisfied with the product. But it has kinks that are fixable. I'd honestly just save up for an Index and get that instead, considering the knuckles are a very good controller from what I hear, but they only work with the Index.