I got my BH pinpointer free, with my first detector, QuickDraw II. It works, just found it annoying, going through the calibration process each time you turn it on. Leaving it on the whole time, causes enough batter drain to require frequent tweaking as well. Have considered opening it up, and installing a separate switch.
Bought a HF ($17), much more modification friendly, cheap enough to destroy in the process, and has been working well.
Fell into the hype, bought a Garrett, which 7 months later, became useless. turn it on, just start beeping for no reason, often enough before even getting close to the hole. Customer service is great, painless, unfortunately, they sent another lemon. It's getting near the useless mark, and will need to be sent back. Not much faith in the Garrett brand, got stung twice, by the same bee, doesn't scream quality product. I can accept a faulty production, few slipping out the door, but two in a row?
Anyway, the BH works okay, just got to constantly fiddle with it. The HF performs about the same, casing isn't as strong. Tuning knob and switch are separate, still have to adjust, just less often. HF is half the price of the BH.