Arrived today and wow, this thing is a behemoth, was not expecting it quite so large - I always considered the3 Carrot large until now, now its medium. It is longer, wider and heavier by a good margin.
Unfortunately interferes with the simplex, though not quite so bad as the carrot. Yeah if its 3 ft away it doesn't, but any closer and it gets progressively worse, especially if the pinpointer is alerting for metal. Headphone audio not a factor for me, don't use em. Also for you guys that like to probe and dig with the carrot, this is ill suited for that, as the tip comes to a blunt, flat square.
Sensitivity seems excellent, sounds nice.
Am tempted to send it back, not only because of its size and weight but the main reason I got it, to get along with the simplex, is apparently a fail, really disappointed with that. But I'll probably keep it, not hurting for $$ and the scuba attachment coil might come in handy.
All in all obviously a quality product that does what it is designed to do, but for guys looking for something slim and light weight, this would be about the last you'd want.