Hi,
On one of our J.3.x sites we did quite some customization in the Helix Ultimate 1.x template. After Helix 2.x came out, we did some tests with updating but this caused much issues. I kept an eye on the development and although in Helix 2.0.7 the template and the plugin are more stable, it would still take us a huge amount of work to adjust all customizations to the new version.
We are now thinking of postponing the update to Helix 2 until we migrate the site to J.4.x, which is due in summer. Any comments / advice in favor of, or against this strategy?