The one annoying thing with the mobile menu was the "double" menu that would appear when clicking the 3 bar thing in the upper right corner.
There is a simple fix for this but whatever you do make sure you have backed everything up before attempting this. I installed the dev_tools and cloned the default template before I tried this.
Anyway, here goes.
1. Find storefront/view/default/javascript/custom.js or if you cloned the default template go to the extension folder and find the folder that you named your clone.
2. Go to about line 28 where it says // Top Main Menu mobile.
3. A few lines down you will see // Populate dropdown with menu items
4. Delete all lines in between
Also turned off cart block in layout so now the 3 bars do basically nothing. Wish I could get rid of them. Any ideas?
You can check it out at cbto.us. I rearranged some blocks to show the search box by default also.
The more I work with Abantecart tha more I like it.