Product review (5 stars): No Issues Yet!
I am now ordering my 4th filter and have had zero issues. There are a couple tips that will help if you are having issues getting water through the filter.

1. Have a towel below the filter before removal for any small leaks.
2. Make sure to apply even pressure before locking the filter. It requires a bit more then just sliding in.

That is it, really it is quite easy :).