Feedback Requested: Better Tabs System.

One issue with tabs is that it's a pain to try to keep the "left nav" in sync across all the tabs. Toggling across all tabs is very slow.
I've been experimenting with the "wintabs" plugin, which recreates the notion of tabs, but using buffers. It renders its own tabline, and therefore cannot use the GUI Mac tabs. I'm curious what users think of this. How often do you use Vim Tabs pages?

No files or tests are named. Start by reviewing the current MacVim tab behavior and the wintabs plugin approach described in the issue; the work would first require deciding whether to pursue a buffer-based tabs system and defining the desired behavior.

Written by the indexing model from the issue text.