Are there problems besides the undersupported chamber and the inability to hold the hammer back? They look like they would be pretty nice guns if they made any that fit my hand.
There is always going to be issues with anything made.
I say again, Glock is a decent gun. It has problems that need correcting and they will correct them with time.
The gun made Mr Glock a multibillionnaire in a short period of time. He had an idea and acted on it. The better part was he had the best marketing that I ever heard of.
What has not been addressed here is that the gun is affordable to just about everyone. That helps make it popular.
It simply has drawbacks that need to be fixed.