Using the Uniden R3. It was considered the best as of not too long ago.
Valentine V1 is nice for those directional arrows. Wish mine had that but whatever. I just know that when I detect a steady signal, slow the f down.
Only problem I have had with mine is what seems like false laser alerts. It could be people running laser jammers but who knows. I've rarely (if ever?) been hit with laser and it was obvious that I was getting hit with it. But it happens less and less frequently these days.
Most annoying part is the random KA alerts I get just driving around. They're very consistent at least. (Looking a certain way in a parking garage, up a certain hill, getting to a specific point on a certain street, etc.) GPS mute for that is nice, I guess.
They're also continually updating the radar detector. Which is good.
A big problem with the R3 though is that you *will* get alerts for insanely far away cops. I'm talking multiple miles away, you'll get a reading. That sounds nice but it is kinda obnoxious sometimes. It's a bit *too* sensitive. BUT, they did add an option to turn down the sensitivity and whether you get alerted up to X%. (So, you won't get alerts for really weak signals)