I currently use the 160 which is similar. Its a no frills unit. Very user friendly. Shows bottom contour, bail schools, SST temps, and depth very well. No too accurate past 300ft and sensitivity is useless below level 7 in LJ waters IMHO. Very low on power useage, I can go sunrise to sunset on a homemade 10 cell rechargeable AA battery pack. For the price you got it for you cant go wrong especially if you are upgrading from no unit at all.
With that said, I cant wait to upgrade to a FF/GPS combo...
