Hi, I'm looking to buy one these but the accuracy issues that some people report (here, Amazon reviews, etc.) are concerning. I know BP readings aren't always precise, but I'd like consistency and some confidence in the accuracy. People often compare to Omron devices. Anyways, my question is how has Garmin responded with software updates? Have there been some to address some issues? Or, do people think the device itself (the design) may be a hindrance. I don't want to spend this kind of money only for a version 2 to come out or Garmin slipstreaming in an updated version without changing the model number. Or do I spend much less on an Omron 3 and wait?