Not for everyone, I still miss maybe 2 out of 10 push notifications on my iPhone.The app is 100% reliable on an a apple device for receiving notifications
Every time I miss a notification (and I missed one when setting the alarm for bed last night) I check my second ARC entry which is a Montex server running on via a private circuit at work. The entries in my Montex is 100% correct every time. From this I would also presume the Texecom server received the event as well but didn't send the notification.