I have a Lin6 Toneport GX and allthough latency should not be an issue i do seem to have it when recording, probably due to heavy cpu usage. I do have a cr@ppy amd 3200 cpu so probably this will improve with a better cpu, still im sure ill be better off investing in a stand-alone recording device. For the usual CD quality recordings a USB device like the toneport is fine, not latency issues so far.