New Keypass request - Sometimes it work... sometimes not

Am I the only one to think this new thing is not ready?  

I had a bad experience. First, I had no other choice then use my personnal phone to make it worked. Then, it worked for sometime and block. It was not my phone As I was able to log on other sandbox with the exact same set up with a keypass using my Phone. I had to open a ticket and wait few days before they can unblock me. Fortunately, it was for one of my Sandboxs. But I Can't imagine having the same issue in Production. I fully understand the need, but... it has to work.