I wanted screens on my streamers. I thought it would be cool. The only streamer that I have setup thus far is the Wiim Ultra. I hardly ever look at it. I usually just look at my phone. The screen on the Ultra just doesn't seem practical for control use.
I also have a Holo Audio Red and a Bluesound Node Icon for other systems that I haven't setup yet. I have a feeling that it's not going to matter whether they have a screen or not, but I still think the screens are cool. I don't have any thoughts at the moment as to whether there is a noticeable noise difference.