There is no shortage of plugins available to extend Elementor, and Booster Elementor Addons is not one I would recommend if you're looking for a poorly designed, quite bland and buggy collection of elements, and horrifically supported plugin. Booster Elementor Addons is only worth using if you aim to add value, creative flair, an abundant selection of unique elements, and incredible support by its developers.
Seriously, though, there are only two Elementor add-ons that I find essential, Booster Elementor Addons is one of them, and the other is the Happy Addons for Elementor. I recently had an issue related to purchasing a license from another marketplace that removed the plugin from their site before I could download it. I contacted the plugin developers, and they promptly resolved the issue.