The software Garmin Express (interface to the bracelet; loads the data on the Garmin servers) and the web interface but Garmin Connect are a disaster:
1. Concept: The data arrive exclusively in the cloud; So far I have found no way to download and save the data locally. For me an absolute no go!
2. The one or more servers at Garmin or the software will not run stable. For two days the uploading of data or only partially functioning.
In Garmin forum, many users complain about the poor quality of the software and the non-functioning support on the part of Garmin.
My conclusion: If you want to have the strap only to introspection and the motivation, it can buy calmly. If you want to store, analyze and compare overtime their data safe should keep their hands in the current state of the software of the product.
If it were, then, I would give 5 stars for the clock, 0 stars for the software.