The unit itself works ok. Not a major issue. However... the manual is a complete basket case. Describing it was "worthless" gives it too much credit. If you are already a Lowrance user then maybe this is no big deal. But if you are not an experienced user you may expect to be frustrated and baffled by the gross ineptitude of the Lowrance "manual". It's actually quite pathetic. Lowrance should be embarrassed.
