I installed the LP3 about two weeks ago. '07 RX350, Gen 5 (not the latest 6.1 firmware version). Installation was fair, pulled the center console to add the tap into the radio for audio, then the two new plugs for the Nav, one large plug and the video plug. The other bypass one gets connected to the DVD unit in the trunk/rear area.
The system to work fair to well on the "I agree" bypass, as well as audio/video (I'm connecting in a video IPOD). The destination and phone bypass works but I have noticed thing cycles about every 30 seconds, by that I mean it allows entry for 30 seconds, flashes to the non-bypas mode and comes back. I'm calling them on this issue.
As for the Company, not responsive at all, they do not return phone calls or emails. The product is a fair, but until I see this bug go away its not one I would highly recommend. Product I would say is a 3.5 out 5, support/company 1 out of 5 at best.
I am also running the VIAS Sound linq for XM Satellite radio input, installing the LP3 did not interfere with that at all.