I regularly see the same IFTTT notifications over and over and over. Often the same one will repeat endlessly until a new one takes its place.
This largely makes the display of IFTTT notifications on La Metric not usable in situations where you may or may not have an alert.
In my example, I'm a Strava user. Whenever a friend has completed a ride, Strava tells La Metric to show an alert. Unfortunately that alert never stops or times out. So I may have had no friends ride in the last few days, meanwhile the IFTTT is alerting me like it just happened.
I would expect that I would be able to perhaps tap the button on the top of the La Metric and it would clear that particular alert.
The IFTTT integration, in my opinion, is absolutely key and opens up tremendously awesome integrations possibilities. As of today, however, the implementation of it is very, very rudimentary.
I love the form factor, the size, and especially the potential -- but I've been fooling with La Metric on and off for months now and it feels more like a very expensive digital clock than anything else.