Nikon Laser 350

Positive:

Accurate to 1 yard.

No need to download courses like on a gps unit.

Ready to go anywhere.

Once purchased only needs the occasional battery.

One push of the button and you have 8 secs to check the distances to hazards, flag etc.

Negative:

Will only measure to visible targets.

Doesn't work well in rain or gloomy conditions.

Overall:

In my opinion, miles better than the gps units currently on offer.