Notion Age is the second agency we used, and they really shown the different level of professionalism in SEO compare to others. We were guide along the way and most importantly they deliver beyond what is promised.
So far the little I know of them, they are just very good in what they do. Impressed with the quality of work.
We been using 3 SEO agencies in the past none of them can delivery good SEO results, until we found Notion Age, they helped us with premium quality SEO and now our website ranking result is fantastic and we got many online leads now!