Everyone always talks about the V1, and I agree, its a nice detector. However, I use the Passport 8500 X50, the new upgrade, and MAN is it good.
I don't have any fancy wiring or cool places to hide it...I just place it front and center, and it'll pick up cops from very far off.
I don't really speed that often, but when I do, its usually pretty, uh, speedy. So I enjoy this little detector, and wanted to vouch for it amidst all the 'V1 propganda' out there.