If you want to know what I think about this computer you are welcome to check out my MacBook Pro 2016 Review. With that said I have recently seen some graphical interface issues in macOS. When I am able to get those graphical issues on a screenshot it is obviously some software-related issue going on here.
It doesn’t happen all the time, but I haven’t been able to figure out what is causing this issue. It mostly happens in the drop shadow underneath windows like that copy bar pictured above. It is also occasionally apparent when I bring up the spotlight search bar or use quick looking at files.
The current OS build I am running is macOS Sierra 10.12.3. I assume this will be fixed in software updates in the future. I dont notice any other issues when this happens, its only cosmetic for now.