Test looks good to me.. not sure why people want to be so hypercritical, it looks like a hunt any of us do. Machine seems to be working well, and the hunter is sticking it out in MISERABLE conditions. Machine sounds incredibly solid, but I'd like to see it at a beach infested with iron flakes.
I purchased the 600 only to replace my AT Pro for hunting dry sand and land. Sometimes I show up with my AT Pro expecting to hunt the dry, and the beach has a nice cut and the tide is lower than predicted, and I'm stuck with my AT pro which is terrible in wet sand. This machine, if it works as shown, will be a godsend to my detecting. I'm not sure if it will replace my CZ21 for water hunting, but if it does I'll be in heaven... hunting dry, wet, or land with one light machine is a dream come true for me because the CZ-21 is a tank... like swinging a barbell... but it works. If not, fine, if I can hunt dry and and still do ok in the wet sand, that justifies my purchase.