You have an MXT and looking for a casual coin hunter and your choices are a CZ5 or a Vaquero.
The CZ 5 is by far the better casual coinshooter of the two just based on TID, the Vaquero is listed as a Relic hunter. I have an M6 and it's most likely a better casual coinshooter than the MXT due to the tone ID.
In my opinion, other casual coinshooters would be an IDX Pro, Ace250,Golden U Max,X Terra 50, Fisher Excell although any of them can be serious detectors.
One of my favorite non TID detectors is a Minelab Advantage as it just seems to connect an audio language that i understand , goes very deep and relatively inexpensive.
Just my humble opinion for what it's worth. HH Bill