I have the 204HD. It sounds great, its stable, has good latency for tracking.

The preamps are very workable but not super low noise, nor do they have a ton of gain. They are fine for loud sources or sensitive mics.

Also it supports multi client audio so multiple applications can share it. Using the duplicated 1/2 outputs on the back you can set up a loopback into the channel inserts for sharing audio between apps.

Im not aware of any other units in this price range that have inserts.