I travel a lot. Take elevators in all sorts of buildings all over the world.

I’ve noticed that Otis elevators work. Pretty much all the time. And that all other brands of elevators have problems.

… In 1852, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the Otis safety elevator is somewhat similar to one type still used today. …

Today the Otis Elevator Company, now a subsidiary of United Technologies Corporation, is the world’s largest manufacturer of vertical transport systems. …

If you see a name plate for any other company (ThyssenKrupp, Schindler, etc.) … you should consider taking the stairs.