Been using the Uniden R1 and it's blind spot detection false rejection performance is very livable, my very old Valentine 1 was too noisy on false alerts and didn't want to upgrade.
anyway this Undien is a great little detector and the lttle suction mount even with taking on and off multipile times daily work great.
http://www.vortexradar.com/2017/06/uniden-r1-r3-review/