Had my 3g's for about a month now, and I love it. After going from firewire devices to pci, I'll never go back. On the same computer I ran a profire2626 with 2 ada8000's hooked up to it for about a month and I hated it for all 30 days. After getting 2 3g's, tossing in the pci cars and hooking them up, I set it to 64 samples which gives me a reported latency of 2.3ms with not a single hiccup. I never have to worry about the firewire cable getting pulled out when the computers on and putting it into thermal meltdown...
They sound awsome for the price, and it gives you a lot of i/o options, just only two mic pre's. But mine are used at getting 32 channels in and out of my console. If you need more then two pre's your probably better off getting the focusrite.
my 2 cents...