My favorite features allow me to fully customize the look and feel of the template through the backed. There's a template width selector that allows you to instantly transform your site from responsive, fixed width, and mobile compatible. I have several sites and having the ability to fully customize the template to match the unique character of each website was very important to me.
JoomlaShine is ahead of the curve and since I've owned their products for several years, I can honestly say that their support is top level. They update my templates constantly and they made the upgrade process as simple as clicking a few buttons in your back-end. I wish that all of my other components were programmed as well as these templates. Don't bother looking elsewhere if your plan to get something that looks professional and includes all the bells and whistles anyone could ask for. They make top end products and I'm proud to say that I run JoomlaShine templates on my sites.
Keep up the great work!