Port has all the usual functionality you would expect from a premium theme including Google Font support, theme options to set your own logo and colors, shortcodes, video support and integration with useful plugins such as contact form 7. The design also features parallax effects but they are not overused like they are on so many themes you see.
Whilst some people do love the minimal style, I think this theme would benefit from some extra design features. I don’t think there is enough visual flair to really make Port stand out as a premium theme. The blog especially looks far to simple and generic for my taste.
Having said that, if you want a minimal theme from a trusted theme provider, Port may be ideal for you.