We found the time to test the new integration and I'd like to share our results:
Pro
"it kinda works as expected" (no visual changes since 2009).
Cons
- The Addin registration is a mess and needs to be redone after each VS update/patch (so at least one a quarter)
- headless deploy is more that tricky if not impossible (as for the re-registration isseu; see above)
- The VS internal "standard framework" for Issues and Version control is not used and the PTC works totally different than the competitors (extra training effort for new developers)