Is Comodo firewall really good in comparison to other firewalls (e.g. ZoneAlarm)?

During the last few weeks I heard a couple of times from the (freeware) firewall Comodo
downloadable at www.comodo.com

At a first glance this fw looks good from the GUI and it passes all leak test successfully.

Does someone know some dis-advantages of Comodo in comparison to other firewalls
e.g.like ZoneAlarm ?

Pete