I got a Deus one year ago. After the learning curve, which was not all that bad, I started to really like it. The more I used it, the better I liked it. I could have any machine that I want, and this is what I use!
The Deus is wireless, if you have never hunted wirelessly, I can not even begin to tell you how much better it is.
The Deus is light... half the weight of the other machines. The AT Pro would make my arm tired after an hour or two, I had to switch to the left arm to give the right one a little rest. No need for that with the Deus. Swing all day long, no issues!
I can not tell you how much nicer the whole hunting experience is with this machine.
I went to Philly in early June for a few days. I got an opportunity to spend the time with the best Deus user that I have ever seen. He amazed me with his Deus skills. I watched him dig an 1802 half cent, in the trash, at almost 12" deep. I also saw him dig a walking half that was at least a foot deep. The machine finds treasure! Here is a pic of the keepers, our host put us on killer spots, and it took 4 days to get all of these coins, but I found them with my Deus.
If you want any info, don't hesitate to PM me.