weathertech window deflectors; these any good?

mine are in the groove so I can easily pop them out, but not only are they great in the rain but also blocks a little more sun coming into my drivers side window [I have Dark Gray ones] ordering a set for my new Rav4

 

No idea what will happen when I sell the car. As thin as the piece is that goes in the groove I cannot imagine it causing much of a problem.

 

So, I went and ordered some, and got the fronts in okay, but I have no idea how to install the rear clips. For now I'm just going to set the piece in there and see what happens the next day, unless I can find some better pictures than the ones weathertech gave me.

EDIT: Nevermind, found some links on how the clips were supposed to go in, and a video that more clearly explained how the rear are supposed to fit in.

WeatherTech window deflector install tips with diagrams | PriusChat

The video is for a Gen 2 prius, but it still worked for me in a Gen 3:

Now here's to hoping that the rears stay in place and don't fall out later...

 

Yea I had to watch the video to install the rear ones. If the rear ones are installed properly, with the clips going above the weatherstripping, they should not fall out unless the weatherstripping falls out of the channel which should not happen.