I like them - I think it adds to my story as a maker and gives me more opportunities to give my shop personality, but I'm not really sure if anyone is looking at them. I've noticed that I'm getting a few views directed to my shop from the shop updates in my stats, but because there isn't a way to "like", "comment", or otherwise interact with the updates themselves, it's tough to really tell.
Personally, I would love if Etsy added them to the personalized desktop homepages in addition to the Etsy app - I browse my favorite etsy shops on my computer, not on my phone. I feel like more people would see them if they displayed in more places.