... the process of validating the accuracy of my home BP monitor reminded me of the Physics 510 lab I did in graduate school!

Omrons do their primary job well but you run into the "IT is where great brands go to die" phenomenon that you run into everywhere -- like the stay I had at a Hilton where the staff was great but between bad wiring and bad React apps the IT experience was shoddy... Staff would be held accountable if they did a bad job but problems with IT are treated like the weather, something nobody can do anything about.