Easy to use but gotta stick with it
works well enough on the second or third try--first reading is always out of whack/impossibly high.  Retake a couple of times and reading becomes accurate.  Very easy to use, but must remain completely still while using.  Also remember to raise arm to chest/shoulder level and keep feet on floor.  Big improvement over older ways to measure (wrapping arm, stethoscope), and better than worrying about BP.
Rating: 3 stars