You can think of it as a strange take on chess. A mate and I played it together at PAX and we each bought a copy!
Also HIVE (same game with bigger pieces and no expansions) for $29.00 https://www.amazon.com.au/dp/B0079L0EKY
Hive pocket is a smaller sized version of the game HIVE and it comes with 2 of 3 expansions.
Other Prices from Boardgamesearch
Hive pocket: http://www.boardgamesearch.com.au/#!/search/Hive%20Pocket
Changed link to the Normal version which is still available
You can watch a review of it here: https://www.youtube.com/watch?v=szmcsO9ZCpo