Yes that is the same one I got. The price was as low as $14 or $14.50, but at my local store it rang up at $17 instead, and I didn’t notice until I was at home (and I am not going to argue with them over $3).
I went straight to the Rboy DH - never tried the standard one. I set up the smart app too that lets you set a “normal” schedule like my old thermostat did (weekdays/weekends, with wake up, departure, arrival, and bed time settings.
My only issue so far was that it didn’t set the time automatically or report battery levels. I used the AA batteries that came in the package, but they were dated with 2018 expiration dates. Now that battery level has started appearing, it has dropped from 95% on 9/9/18 to 92% on 9/15/18. I have a webcore piston that notifies me if certain battery levels reach a certain threshold, so I am counting on that to make sure I change batteries in time.
I do see that it disconnects from the hub occasionally (via the api web interface), but it reconnects within minutes/seconds. Not sure if this is normal behavior.