Well, I like it. It's light in weight and has many options to tweak it up a bit for your hunting preferences and specific targets. For example, using the 20kHz for a tiny flake of gold get better sensitivity and depth then multiple frequencies. As a general rule (but not always) a higher conductor target, say like silver, should be able to get better depth with a lower frequency, such as 5kHz, and a lower conductive target like gold, would be more sensitive to a higher frequency.
I prefer hunting with multifrequency mode. It just seems to punch my soil a bit better. If I were searching for tiny gold nuggets, I would switch to 20 kHz, bases on my trials at home in my back yard. Garrett will probably come out with some accessory coils, to assist you with better depth and/or better separation. It's priced accordingly.