>when they are at least at feature parity with HTML5, CSS3, Ecmascript6 Edge 14 has 90% on kangax, putting it on par with current Firefox 48. >work cross-plat

>when they are at least at feature parity with HTML5, CSS3, Ecmascript6 Edge 14 has 90% on kangax, putting it on par with current Firefox 48. >work cross-platform (not just on Microsoft-owned platforms) Valid concern. >have useable developer tools Have you tried them recently? They've made massive improvements. >They are also missing something like Electron UWP for Windows 8+, HTA for older platforms.