1. Faster than most of the simulators such as modelsim, xst, quartus, riviera pro.

2. Allows to add deepest signals in the heirarchy, which is the most lovliest part about it. It is a critical functionality, I don't know why others have not included it yet in their simulators. Review collected by and hosted on G2.com.

1. No forcing allowed.

2. Simulation should be completely TB based, else you are helpless.

I would recommend Cadence team to add some sort of forcing functionality. It might lead to timing imperfections, but for a small piece of code that needs a review, writing TB becomes a little waste of time. Review collected by and hosted on G2.com.