iOS as endpoint sounds great. Don’t…“by all means, upgrade to something better.” This is a pointless recommendation. My iPad/iPhone as end points were better than any direct Mac/PC connection I’ve tested. I have also tried RPi, SOtM endpoints. There is no reason to spend extra money at least not unless you want to try something that re-clocks/re-generates your USB signal…like I have settled on. iOS as endpoint is a brilliant solution and not to be marginalized.