What is your opinion of this product?
I really like the Presonus 22VSL USB Interface. It works great and feels solid. One disappointment was the VSL software does not work on the Mac due to an Apple change in the OSX operating system. Presonus is abandoning this software since they say there is no way to fix it.
The VSL software was one reason I bought this interface. But even without that I really like the included Studio One DAW software.
So I say the Presonus 22VSL is a keeper. I have had absolutely no issues with the hardware.