StellarRat is threadcrapping... I use a Uniden R3 and there’s nothing obsolete about it. My longest detection so far was about 3 miles straight ahead along a highway on K-band. Laser usage is heavily dependent on what part of the country you’re driving in, most common way to detect it is scattered off of the cars ahead of you.
If you want better information, don’t look for it here on TMC. There’s a lot of people like StellarRat who have axes to grind, they assume that everyone with a radar detector is somehow an evil criminal.
For what it’s worth, I got my first one when I was driving my MINI, which I had a tendency to over accelerate with. I’m not a serial speeder, I just wanted a reminder to check my speed on the highway because velocitation would set in and it really didn’t seem like I was going too fast... not a problem when driving autopilot in a Tesla. I installed it in my car because I already had this thing and I may as well use it. Plus,I like the extra sense of awareness that it gives me about what’s going on around me.