There has been a curious divide in this sub between people calling the headset blurry and others, for whom it appears to be much sharper. Of course, there is tons of good advice on how to find the sweet spot etc., but for many people (including myself) this does not fix the issue. Because there can be another issue, not with the headset itself, but with its users, particularly if they are VR newbies.
It is called vergeance-accomodation conflict:
https://en.wikipedia.org/wiki/Vergence-accommodation_conflict
Essentially, due to limitations in current VR displays, your brain has to unlearn the relationship between the distance