Well, I purchsed the x50 and rx65 at the same time (both from Bel). As soon as I got them, as I've stated before, the x50 had technical issues and the laser signal sounded constant with not a threat in sight. So, I unplugged it and plugged in the RX65. The RX65 was good at doing it's job. Honestly, I wasn't $200 convinced over a Whistler, but that's just my opinion. However, I was going to go ahead and keep the RX65... until, the clouds rolled back and allowed the sun to shine through. With the angle of the RX65 display being cut up (still don't get that one), it allows the sun to shine right through the display and renders the display completely useless (to me anyway). Sure, it has the beeps and even the voice to notify you, but for $300, I would still like to be able to read the display. Especially if I have my music up and the RD on autoquite. After the first 3/4 warning beeps, it drops below my music level and I no longer have warning tones, or a display when it's sunny. Anywho, just my experience with the RX65. So, I will be sending both the RX65 and the X50 back since they are within the 30 trial period. I picked up a PRO 73 and hopefully I will be able to see it when it's nice and sunny out. Still not sold on the blue displays, but that's another story.