I find it very helpful for identifying trends and it’s also a lot more convenient when out and about walking.
Agree that it’s not a complete replacement for finger pricks, although as an unmedicated type 2, there is no danger to me in a falsely low reading.
At first I found that almost every sensor ran lower than fingerpricks - I test a couple of times when first activating a sensor, and spot check off and on, especially if the sensor readings seem off (after a few years I’ve got a fairly good handle on where I’d expect blood sugars to be in different circumstances). However, recently they’ve either been running high (sometimes substantially so) or pretty close to the finger pricks.
There’s also a time delay - the Libre is measuring interstitial fluid rather than blood and takes a few minutes (10-15) to catch up with finger prick readings from blood.
Its a good investment and you’ll likely learn lots.
I tend to use the reader as it fits in my pocket, but the app works just fine.