I like that it's very user friendly, you can create your own layouts or use those already made available in their library of templates! It also allows me as an admin panel access from my computer so i don't have to go through another website just to make changes/add new pages etc.
The only thing is sometimes there are minor bugs with navigation but nothing too serious other than maybe some links not working properly when clicked upon. Sometimes if we want something really specific (like adding custom fields) then its hard finding someone who knows how to do this because they're all busy creating more designs instead (which isn;t necessarily bad). But overall great product!! You should definitely try out pingendo - even though most people will be using bootstraps grid system which works perfectly well alongside them! We've been able solve many problems relating back-end issues such as designing our front end websites without having any prior knowledge about programming languages / coding.