I have been looking for a square lately because I would like a nice g shock to fit comfortably beneath my sleeve when hiking in the winter(I have a King, gas 100, ga 700, all a bit too bulky when hiking in layers). Nothing really grabbed my attention until I saw a G-SHOCK GW-B5600-2 last night. I find the blue on the dial striking and the negative extremely legible. I am thinking about purchasing it, but I am kind of on the fence because I feel like the extra costs are for features I am not sure I will really use (blue tooth, multiband, the app which I have read mixed reviews about on a thread here, etc). I guess my question is do you find the extra features useful? Does the bluetooth connection drain the battery significantly? What is your overall impression of the watch?