I have the RS-65 and it has been in use for over a month now. All I can say is that I LOVE how this model projector looks.
It is noticeably brighter than the RS-60, how much I do not know in terms of measurement, but the home theater dealer that did the install commented on it as well. Also, the other nice thing about this year model is you can do "zone" calibration. Instead of only being able to adjust the entire image as a whole, you have a "zoned cursor" that is a box you can move around across sections of the image and tweak just small areas that need them.
Gone too are the color issues, especially on the presets. They never were much of an issue in the past from what most people said so long as it was professionally calibrated. But now, all that is gone it seems. NOTE: Make sure the projector has the latest firmware. It is listed on the JVC web site what serial number runs had the old firmware that still had some issues so it is easy to check against yours. As long as it is past the initial production run of the first 100 units, you are good to go.
My projector has been professionally calibrated and the colors set with the really professional and expensive equipment tools (about $8,000). I would HIGHLY recommend that if you can get an ISF certified person that has had training on how to properly do this to get it done. It does make a difference and gives the picture that extra nice look.
Not much else to say except so far I have been pleased and it looks really nice on my very large projection screen. Many that have been to the CES this year and seen the JVC and newest models from others tend to think you would have to spend about twice the amount of the JVC to get any improvements.
As for reviews, they are nice, but finding a good home theater dealer that you can trust is better. They said this would please me and knew the high standards I have. All I can say is to this point it has and I remain quite happy.