Hi there!
I have mixed opinions about the new version of Page Builder.
The first impression was remarkable good, but, when I'm begining to work with the pages, I found several troubles.
For example: in this page, https://mikmac.ar/airedeproa/index.php/promociones the buttons supposed to be at the same height possition, and same margin from the left and right margins.
Something simple, but seems to need a hack for display correctly.
And, after 4.03 update, the height of both columns (that where the same) messed up. I've created a separate post about this.
Other example: in https://mikmac.ar/airedeproa/index.php/habitaciones need to change by codding CCS the size of the h1 title (in the hero image) because from the addon doesn't work
Also, the capability to move the addons between columns, rows, change the order, etc was removed. That option was tremendously good and useful! It made the job much easier when testing design variants. Yes, you can do this from the layers menu... but it's not the same. I find not as practical as the previous version.
Finally. I've created more Page Builder cases in a month than I did in a year with all other products. It seems that this new version lacked a little more cooking before launch.