Below are some detailed reviews and videos on Elementor, Elementor Pro and comparisons with similar page builder plugins.
Elementor vs Elementor Pro
Thrive Architect vs Elementor
Thrive Content Builder vs Divi Builder vs Beaver Builder (comparison)
Below is a detailed walk-through of the Elementor Pro Plugin
The video below walks you through the creation of a stunning website homepage using Elementor (in under 30 minutes)