Thus far I have been pretty happy with the CTX. I will try to break my comments down:
Performance - Noticeably faster and better separation than the E-Trac. It doesn't necessarily go deeper but I'm finding more coins at 9" with the CTX than I did with the E-Trac, in a much less time. (9" is the max thus far). The way it hits the 9" coins I think I will start finding some 10" coins. 50 Conductive falses way too much compared to Combine but I'm able to get it to perform regardless. I do run it hot though, at least most of the time. I love the shortcuts and user button and layout - Minelab got that right and I bet they aren't finished! VERY EASY to move around the menu. I will stress this point, very nice Minelab.
The performance of the CTX is not hugely superior to the E-Trac, but it is noticeably better (I'll guess and say 20% ish). I'm guessing the E-Trac hits on most targets the CTX finds, albeit with a less accurate VID and not as strongly. The E-Trac will miss some of the deeper targets or targets closer to iron/trash. If you don't hunt in bad ground or high iron / trashy conditions, I wouldn't think the upgrade to be worth it.
Build Quality - Top Quality. Can't complain. The stems fit tight and I like that. Very sturdy unit and it also looks nice.
Ergonomics/Weight - They got the balance spot on, just perfect. The reason I tried the CTX is because the E-Trac's balance was terrible and I loved it so much (just clicked with it) and didn't want to keep searching for a machine that worked in my soil after so many had failed. I now have a few 5 hours hunts and I do feel the weight but not like the E-Trac. I would have preferred a 3lb E-Trac to be honest. The handle, for me, is at the right angle and has the perfect thickness. I love not having a foam grip! The only thing with ergonomics that I still think is off is the pinpoint button. It is above the forefinger and not angled down towards it. It is mostly easy to adjust to this though - but still gets me after 40 hours of use.
Screen Quality - For a color screen it is subpar in my opinion. Had I not had a V3i I might not say that. (The V3i is how many years old now and the CTX's color screen, though it clearly has more pixels, is just kind of blah.) Sort of sad considering the cost of the machine. (Now, if the sun is just coming up or about down it looks pretty good). If they could add some contrast and more vibrant colors I will change my opinion. But the colors and contrast is sort of flat - Just look at most of my videos. I mean, there IS NOT a contrast adjustment - that is weird. It's a bit hard to see where your disc pattern is at times as it is sooo faint. (Depends on outdoor conditions though.) I switch between patterns fairly often and sometimes am in the wrong one as one is minimal and the other open (when sun or the like is out it is easy to do). The VID numbers mostly cover the clock and if you run hot (like I do), the clock is almost always covered - hope they allow us to move something in an update.
Special functions - I do like target trace and target trace pinpoint. Target Trace doesn't seem to do much beyond 6" or 7" so in my ground but it is giving a lot more information via the splattering. I like that much more than the target trace alone. The ferrous coin ground setting has made a HUGE difference in my iron mineralized ground and sites with more iron. I am most looking forward to what upgrades Minelab adds. That is exciting and a big improvement imo - to have upgrades. Being waterproof is great as far as cleaning the unit and hunting in rain goes. Having it waterproof to 10ft probably added a lot to the cost and I bet most don't ever use that, so I would have preferred water resistant and a cheaper price. The GPS feature, thus far is mostly unused but I will play with it more at more open locations. It is handy for keeping track of larger sites.
Price - Pick your currency, I'd say the unit should sell for 1900 bucks or so. The technology is improved and the waterproofing is great, but the price seems really exaggerated. The AT Pro which costs 600 or so bucks is waterproof to 10ft as well so I can't justify a 2500 buck price tag because of that. Essentially, we have a unit very similar to the E-Trac with maybe 20% or so better performance, not really more depth, but it sells for almost double the price. I could see that being worth it if the depth was 3" or so more. Think about this. This is not a criticism, I'm really looking at the unit and wondering how they charged so much. It is a great unit, no doubt, but I can't justify the cost. But here is the thing - sites are getting pretty hunted out.
And if the CTX gives you that edge in those sites AND word gets out, they will come.
Overall - I really like the unit, my favorite unit by far thus far - not close (So don't take my criticisms the wrong way). Performance is what matters most and that has been improved on over the E-Trac. I still say, had they built a fast and light and just water resistant E-Trac (basically a CTX light in a way) they would have killed the market. Thus far, at least from my reading forums, the CTX seems like an E-Trac upgrade for most. I don't think a lot of guys are using it at the beach or underwater - I haven't seen any stats.
Well, I didn't plan on writing a mini review, but so be it,
Albert