I had this installed this morning. Panel in cellar head. Two x PIRs, two x door contacts and 2 x key fobs - no doorway keypad. WiFi module as opposed to GSM or LAN. It was a pain to set up; they had to call Pyronix twice and Pyronix advised to "turn it off and back on again", but eventually it was all up and running. I have the App running on my phone and tablet and, so far, I think the keyfob approach will be most convenient.
Authentication is a bit OTT - at least it seems to be, in initial setup. I seem to have around 3 passwords (Pyronix website, Cloud password and App password) I may need to remember now. However, in practice, I bet I hardly use / need them. I obviously still have codes to use and the App asks you for codes when you're doing certain things.
Yeah, I like it.
I have checked my system on my phone a couple of times since it was installed - I'm now in a different county - and it has 'errored' on me, saying something about System not polling Pyronix servers or summat... but it seemed to recover from that. The connection to the Internet is a little 4G MiFi thing at the moment, so maybe that will be better once a proper router is installed, who knows?