I am very happy with the monitor. I bought a second one for a relative. Shipping was very fast. Solid build quality, even the packaging. It is very easy to use and picks up signal easily. The manual is well written, 38 pages. Syncs without a problem to app on my Samsung phone. I like the PDFs it generates and can email to my doctor if needed. As for future improvements, my heart rate is always below 60 BPM so it would be nice to be able to set the bradycardia parameter.