I'm using the old 1616 pci with the unofficial W7 drivers. When I got this W7 computer I had a little problem installing them. Later, after wiping my HD and doing a clean W7 reinstall, driver installation went very smoothy. In both cases the unit and drivers are stable and work well.
If I were going to get a new one, I'd be look elswhere. EMU has not seemed to ibe nterested in making drivers for their products since Vista, and they seem to have a bad attitude, and there have been no upgrades to thier PatchMix software (I havn't checked for a few months), and I thingn the support forum is now defunct. I'd go with a company that loves and supports their customers, and E-MU is no longer that. Just my opinion.