I've had a DFX for 4 months and have found a lot of rings, etc. For me, there is no real downside to the unit. If you don't use the turn-on-and-go programs and make your own, you need to stop and think about where you are hunting and what you are hunting for and set up the unit accordingly. If you don't like a lot of bells and whistles, then don't get one. If you like technology and the ability to customize the detector, then it's great. It has very good target separation, great discrimination (the best as far as I'm concerned) the depth is very good, it has many coils to choose from, you can mount a SunRay probe and it's pretty easy to swing. If you have a big coil and a SunRay, it can get a bit heavy after a while. They do have hipmount kits for the control box. Depending on how you set it up, you can get information overload, but this can be remedied by implementing appropriate settings/discrimination, etc. It's been said before, but it really is many detectors in one unit.
HH!
TBGO