RDX purchasing experience and deal price sharing

My old accord retired and I got my 2015 RDX yesterday. During last two weeks, many forums provide me valuable information and I hope my purchasing experience could help more people.
I don't like to talk with dealers in person and most of my research and inquiry is done online. Actually, I just pay directly after I get the good price online.
According to my personal experience, I classify the online car inquiry tools to four categories:

1. edmunds.com: the prices are mainly provided by dealers. So these prices normally are 'happy' price for dealers. however, you could use this price as a bottomline and bargain with dealers offline. I not good at this, so skip this part...
2. truecar.com: the first tool I used. I have to say the price in truecar is a 'fair' price and Truecar dealers will not give you more discounts(they just give me 100 off...)
3. autopriceshare.com: I got my final price from this website. the prices are shared by users. So some prices are good and some are just soso. you need to pick up the good deal by yourselves.
4. facebook group: I attend the RDX interest group in facebook and ask others' price and suggestion directly. it is useful for me.

Actually, most of my experience is for online. I am not at bargaining face to face...

My last deal: Acura RDX 2015 AWD, price 34233

I hope my experience could help you. Thanks!