Google Play App Signing and Ionic + Crosswalk

I was wondering if any of you have opted in for the “Google Play App Singing” service and if you had any issues with the apk generated with ionic, especially when crosswalk is used thus having two output apk files. I found a similar ticket a year ago, but no definite answer to this question.

I have used Google App signing with a simple app without any issue- I think it can be recommended to use app signing

Thanks Hako for your feedback. I see the benefits, but since you cannot opt out I wanted to know if there were any unexpected issues.