The only weakness that's not related to the Project itself is 3rd party support.
And I wish more 3rd Party Companies support it Out of the box (as for K2)
There are many plugins to help you,
but for some very specific applications a knowledge of PHP is needed,
After more than a year I subscribed to a support plan which allowed me to download some very good plugins to complement the very good component.
The support forum is a good place to help you even if you have no subscription.
Keep up the good work
-So many assignment capabilities
-Is one of a kind(As I Know)
Have installed on dozens of sites and it works great
even with some minor bugs it is a real MUST HAVE.
(In some rare cases the assignment gets reset and in more rare cases it doesn't work as the assignment-I cannot tell what cause these-BUT it's worth it)