A products features is what will get you to buy it, but the support after the fact is what will keep you happy with it.
Recently elementor updated and caused the website to break. Thankfully this was noticed in a staging site, not the live site. I engaged support from elementor who identified issues within the theme. Once I reached out to ThemeREX, my staging site was in perfect order within about 2 days, which may sound like a lot - but to diagnose and remedy a complex issue regarding plugin cooperation with the theme - I believe they worked lightning fast.
They're very friendly and they don't treat you like a moron if you don't understand something or need help fixing something.
I would buy more themes from them just because of how good the support is.