like the Uniprobe myself as it is nice to have a pinpointer with some depth to it. I like the idea of of a pulse threshold so when it close to any metal I hear the pulse change faster so I know where the target is. It also a smaller coil in the pinpointer so it is more precise so you don't have to dig too much or smaller holes. I feel it has about 4 or more inches of depth so I can use it first when I know the area of the target and get right on the target fast. I like the idea of putting the pocket when I detect as it is easy to turn on which turns off the audio of the detector. I also like the cable that pugs into the Headphones is replaceable in the field , so I carry a extra cable when I go detecting in case mine cable gets a small wire break.
Now the things that I don't like is you have to use good quality 9 volt batteries and not the rechargeable as they are not a full 9 volt and as soon as the battery goes down a little the probe get harder to adjust the pulse. I use them until it gets unstable and put in new battery and use the old one in one of my 9 volt detector. I also see you can actually bump the switch that turns them on and if you don't notice it the battery will go dead, but if you have good hearing you will hear it pulsing.
My first one I have had for a while and got new ear pad as mine were getting stiff feeling, had to send the probe in a couple of time as a small wire gets broke and makes a bad connection. Being mine was getting old I sent it in the last time to get it fixed and got a second pair, so I 2 sets now .
Over all I like the Uniprobe that have a very good quality headphone and a good pinpointer for the money.
Rick