I find the Touch bar really useful especially with apps like 1Password.. It would be very interesting to see what else developers can dream off.
As for viruses, these days if I am away from home / office, I rely on endpoint security and VPNs. Make so much sense to offload all the virus / ad filtering to the router instead at the browser. Heck even companies like
Sophos are giving away their anti virus for free because their revenue are from their appliances.
I think the graphics artifacts have to do with WebGL / software drivers and thankfully not hardware at this time. I would not be very happy if I have to go through the solder pad gong show again. Just in case, I used my Amex for purchase.