I no longer live in Miami-Dade County.
Used to own a Unication. They work very well with a few caveats.
You'll need to realize that, it is a pager, not a scanner, so that when you hear something interesting, you won't be able to hold onto the talk group. You will need to become familiarized with how the radio is programmed and THEN plan very carefully how you will program the talk groups.
For example, if you program all of the dispatch channels in one zone, all you will hear is a blitz of calls with no way to hold onto a particular talk group. I believe there's a work around but it involves turning a knob and by the time the radio reacts, you could miss a reply.
I wish I could give you more examples but I haven't owned one for a while and I already forgot how I used to program mine. Perhaps others here can give you ideas.
As good as they are, every now and then, there would be garbled stuff. It even happens to the very own PD radios.
It may work for you or you will find yourself soon wishing the Unication did scanner stuff.
Stuff like, talk group holding, talk group lockout or front panel programming.
I also owned the Uniden BCD 436/536 and a Whistler TRX1, the Uniden gave me the best results, especially when used with a base antenna I could get very consistent P25 decoding.
Or you can wait until the first quarter of 2019 when Whistler releases their new line of LSM scanners.