I have a 1.7 R2.693 with front and rear laser. "Mike" says that X and K is up to today's standards and Ka is decent. No POP (which I would turn off anyway) no Ku (I don't need it), no band LEDs. My laser isn't quite up to par though. Also, two of the LEDs don't work anymore because I had to rip it down once when I was getting pulled over (not speed related). What my question is, is whether I should just send it for tune up and fix or send it for the upgrade? The upgrade is $229 and I also need to get the concealed display. I'm kind of leaning toward keeping the 1.7. I know others on here swear by the 1.7, and I've heard that the newest model has some "bugs" still. What do you experts think?