If you're going for a digital altimeter I'd go with either the Dekunu One or the AON2 X2. You can also find them on ChutingStar. Skydive Vibes has a video comparing the two altimeters:
I have the Dekunu One SmartAlti. https://dekunu.tech/dekunu-one
It's more expensive than the altimeter you posted, but I think it's worth it. The display is great, it has a bar at the top that changes colors based on altitude. Plus the cloud features are fantastic, and the customer support is quick and responsive.
I can let you borrow it to test it out before you buy. Let me know next time you're going to Kpow.
Edit: This is Rob from Kpow by the way (blue G4 helmet).
