I have a pair of these. They're... interesting.
- They're damn ugly when installed

- Since they're not in-line like the TyreWiz or OutRider, you'll only know your tyre pressure
after you've pumped up your tyres and installed these.
- You'll be screwing these on and off every ride if you're running tubeless (to top up pressures).
- You lose a small amount of pressure installing these as they screw on.
- Having to install TWO ConnectIQ apps is a faff. The IOS app isn't working too well for me either. I'll try the Android version when I get a chance.
- They don't save data to the FIT file (TyreWiz and OutRider do this, and I find it useful).
One thing to remember is the current limitation on Garmin EDGE units of THREE Bluetooth sensors (phone connection isn't included in this limit). Using two of these sensors leaves only one spare Bluetooth sensor connection. Something to take into account longer term.
The OutRider sensors are a much neater option, they're in-line, invisible, and require less faff with only one ConnectIQ app (they also have support on Karoo units). These can also be bridged via a mobile phone to the bike computer meaning they don't consume any of the three Bluetooth connection slots on an EDGE. I have them on a set of gravel wheels and they're set and forget.