So, I've been using a White's Prism III, while it's been a great detector, it's old, almost 20 years, and time for an update. I liked the functions and looks of the Simplex+ but marketing got the best of me so I just ordered the Amfibio Multi. I'm not sure if there is a big advantage to the Simplex+ but I decided to go with the Amfibio because of the choices in coils and frequencies. Since I ordered the Amfibio, I see where there are more coils that will work with the Simplex+ which makes it more appealing. It looks like this may be a heads-up for other designers to devote more time to actually participating in detecting instead of designing by numbers. It will be interesting to see what updates for the Amfibio will look like. Anyway, CONGRATULATIONS, we'll be looking for results.