The two boards included with this pack are a great addition to the game, however they leave a little to be desired. In a 4-player game, you would hope that an expansion set of player boards would accommodate a new play style for each of the players, like many expansions do. These double sided playing boards allow two players to play new asymmetric styles and, if they so choose, one of those styles in a symmetrical game. Strategic options are, at least, in plenty with these boards, but there still is, as mentioned, a little bit lacking in terms of variety.
I give this one a 4 star rating simply because it adds exactly what the game needs without adding bloat to the gameplay - but can't give a five due to the limited nature of only being given 2 boards in the pack (and at a general price point that suggests a little more).