It's a fraction of the price of other golf GPS systems out there but works just as well.
Initial setup is not as straightforward as the manual states - the first time you try to locate the satellite, it sometimes takes a a few attempts so here is a quick boot-up method:
1 - Walk onto the first tee
2 - Turn on the Swami 3000
3 - Place it on the ground
4 - Step away from the Swami
For some reason it seems to pick up the satellite the first time when it is not moving and also when no one touching the unit, it will countdown and find the satellite. I was advised it might take two or three goes at this but it found it within 30 seconds.
Once it finds the satellite the first time, you will have no problems after this, and you will be able to turn on and off as you arrive at the course.
I have yet to use it in open play but checked calibration at the tee-markers and 150 yard markers. Spot on!