If you are an experimental artist who want to develop spatial audio multichannel setups with some portable/flexible physical layout + the capability of working with FLOSS, this is the right interface for you.
It is small, portable, lightweight and affordable price.
It sounds greats and I it is fully class compliant, so you can find you way around on Linux. Moreover, considering the price, it is a really cost/benefit ratio for using with the raspberry pi.