It's a pretty good deal for the price. I have a hard time hearing my heartbeat "thump" thru the stethoscope so I had a friend try it. She said the sound was a bit faint but she was able to take the reading on the first try. That's the only drawback to this product that I can see. I'm sure that with more practice I will be able to do it myself so I am going to keep trying. It's simple to use and one person (yourself) can do it.
I think it's a great way monitor your blood pressure and to watch for significant changes so you can alert your doctor before it's too late.

The size limitation is not listed on the Amazon site, but according to the Lumiscope help line this model is limited to arm circumferences 12.5" or less. That's too small for an adult male with average musculature. I'm no muscle-man but my arm is 13" around the biceps, and the cuff was not even close to big enough. I had to return mine to Amazon.

This is a nice set; cheap enough, the right essentials, and simple. I do not use the BP moniter itself however, I bought the set for the stethoscope. Reason being, it's near impossible to find a stethoscope by itself now adays. Anyways, the stethoscope is simple but effective; my heartbeat sounds clear and I can hear my breathing very well. The leather case is a nice touch, and I always keep my steth in there. I recommend this set to anyone, not just needing a BP moniter, but to anyone who might be interested in this sort of thing; I am. If you have no need for the moniter, the stethoscope is still fun to have.