I've been using the "'big brother" 1820M for a few years now. It sounds great, but the drivers and PatchMix software have seemingly been in constant development the whole time I've owned it. So I'd be sure to do substantial research on compatibility with your hardware and operating system before you pull the trigger.
The TB'er I bought it from found it very frustrating, FWIW. But I got it working fine on my system in only a few minutes...go figure!
