Its ability to stop any violation coming through via the database.
The database's ability to see all the traffic going through to it.
Sentrigo needs to become more advanced like its competitors, Imperva or IBM. It needs to detect more attacks and do more profiling of the database to learn its normal behaviors to sense violations.
It is stable.
It has the ability to scale.
The support needs some improvement. It needs to be more professional.
The initial setup is straightforward.
If you need something from a security perspective, then you may need a product which has ability see the negative and positive security from a much bigger perspective.
Most important criteria when selecting a vendor: Support.