So its been a year with the R3 and the sticky cup mount stuck to my windshield and never taken down. Is how I will start my final review of my own personal experience with my R3. Go back a year ago pre-divorce days after my V1 got stolen. I bought a brand new R3 from radar busters and stuck it up on my windshield. Segmented Ka band for AZ and left it up on my windshield for a year including our hottest days this summer 11 consecutive days of over 110 degrees. During that time I read multiple and yet mixed posts about take it down, leave it up, burnt screen issues and one post that was a question as to more direct as to how does the R3 deal with heat? Well while its a matter of personal preference whether to take it down off the glass or leave it up. I choose to leave it up on my windshield. Overall the casing of the the RD has held up very well in the heat with direct sunlight in the AM and radiant heat through out the day. I have had no problems with the display at all. No decrease in performance given temperature variances. But i will say that the sticky cup mount needs to be redesigned. First the sticky cup its self doesnt like the heat, if at all use a blendmount. Secondly the adjustment hub attached to the mount needs a better design to it. This seems to have been a common complaint that it doesnt allow for adjustment so that the detector sits level , it rather sits tilted up, others have said to bend the mount which i have done myself but if its designed right no bending would be needed. But overall an awsome detector as far as performance, filtering, etc.. a few quarks that can be addressed by "upper managment" and the R3 (or at least mine) has tolerated the heat very well. Keep in mind my truck is 5%limo tint all around with a visor strip.