K7 wrote:The article covers many aspects and seems pretty balanced to me.

I beg to differ on both counts. This article is essentially an advertisement for Dalla Corte's flat burr grinders. It even says so at the bottom!

Please note: This article has been sponsored by Dalla Corte.

They gave pros and cons of both types and what to look for in a grinder regardless of burr types, Dalla Corte or not: consistency, retention, temperature, ease of use.

Again, they provided a specific technical reason for choosing flat over conical. A simple "yeah but they are biased" is not a good counter argument IMO. Actually, this lack of valid counter argument put more weight to their statement.