Wish I could say the same!
Pretty much every time I use them, one of them doesn't pair or 'wake up'. Or is completely flat as it presumably doesn't make proper contact with the charge points. I have to jimmy them into the right position until my phone tells me they are charging and not just sitting in the case.
As Feek mentioned I think this sounds like a faulty set of airpods mate, would recommend getting them replaced under warranty if you still have.