All the themes "great features" are nothing more than leveraging other plugins. The bare theme itself is useless. I asked for assistance. It took around 3-4 months for a reply.
Literally you are better off choosing a top rated free theme and just loading the free plugins yourself. Save yourself the bother and safe the cash.
If you want something more advanced, just buy one of the custom themes that comes bundled with WP Bakery and Rev slider. You wont regret it. For me this was a $70 mistake and i've been assured i wont get my money back.