I got the Shimano one just the other day. Haven't field tested it yet. I got it because it was smaller than the IMAX.
It has compartments for 12 lures. (4 of the tubes are double width with dividers and the dividers lift up, which helps to get shorter lures out.) It will take lures up to about 13 or 14cm long.
The front pocket is small, with space for things like a spare spool of leader, some spare swivels and trebles, a very small scales, etc. There are a couple of webbing loops on the front which would take a foreceps, pliers, etc.
--Jonathan
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