Echo Gina 3G : Obsolete, or (still) a solid recommendation?

Been using Echo cards my whole mixing life... current model is the Gina G3 
(PCI).

I was simply wondering if another card out there would perform better 
latency-wise, with regards to Sonar 7 tracking & mixing. For instance,
Echo 
seems to be pu****ng its Firewire models centerstage, leaving you with the 
impression that the PCI models are outdated. Are they, though? Do I stand
to 
gain anything with regards to latency if I switch to Firewire-based
models?

Or, more drastically, is Echo a company you'd recommend I leave behind 
altogether?

(For what it's worth, I don't need multiple outputs, even though the Gina 
goes up to 6.)