Here is an Axon review. Reviews are mostly good so far for the Axon.
This review or another I saw says that text/call is active on both SIMs but data is only active on one at a time.
If you buy from an authorized seller, the best part is the Passport 2.0 warranty. Two years of Axon warranty with a $79 deductible for accidental damage.
https://www.zteusa.com/passport/

http://www.androidauthority.com/zte-...review-704039/