Below is a list of sites that have reviewed or featured Obsidian One (more will be added as they appear):

• Review of Esotericism — Medienkonverter (English, auto-translated)
• Review of Esotericism — Medienkonverter (original German)
• Discography & Ratings — DarkScene.org
• Morbid Visions (YouTube) — Firestarter / Black Moon / Dark Sun
• One Man Bands (YouTube) — Black Moon

You can find my personal reviews of favorite albums on my Bandcamp Fan Page (scroll down for non-metal reviews).