The border lines don't help much either and seem more like decoration; addresses to the left and an indexing header on the top, like the traditional "canonical" hexdump format, would be far more useful.
I did use it religiously for a long, long time; then tried without for a week and never went back.
It's not like telling the difference between string literals and keywords was ever a major issue for me. I guess it could help short term when learning a new language, but I'm pretty sure it slows down overall progress.
Slow compiles have the same effect for me, I get pushed out of flow and into reactive mode.
The only way to write good code is to be proactive, and any features that interfere with that process are worse than whatever "problems" they "solve".