Review time (I will be straight and honest as I always am):
First, the content. It was handwritten indeed and little over 500 words, strict to the subject. I must say I liked the content and I am not a guy who is easily impressed.
Site looks nice, with a custom logo, newsletter etc. I must say it lacks real social profiles and the social icons remain blank with a href="#". Huge downside.
At last, but not least - metrics. The site lacks real traffic and strong authority backlinks, but if you consider the price, I think it's more than fair. Site has a long history, but it was re-created recently.
How to Improve
Maybe create some real social profiles. Try to restore as many of site's old pages as possible.
Ratings
In general, I think it's a great service. Since iAuthority provides one of the best services when it comes to PBN, I will give it a go. Anyway, I wish him and his clients good luck in future endeavors.