ThemeForest is probably the biggest wordpress
themes marketplace out there, but they also sell site templates, and Spa
is a perfect example of a site template which was created mainly for portfolio or business use.
SEO is really important if you want your site to appear anywhere close to the first results of Google or any search engine. The developer behind the Spa template knows that and had [put a good amount of effort making the template SEO optimized.
Fonts are really important if you want your project to look nice. Using the old Times New Roman all over your site is not a good option anymore. The Spa templates includes Google Fonts which are hundred of beautiful license-free fonts for your to chose.
Regargind the author of this theme, designthemes
, has other 128 themes avaialble for sale. With more than 110 sales overall.