Check out this website for a run down on what to expect
http://www.kundalini-reiki.net./
Take care
Parmenion
Also, the following discussion thread may interest you:
http://www.astraldynamics.com/forums/topic.asp?TOPIC_ID=4161
I'm currently getting kundalini reiki attunements(distance) every four days. I have been reading up on reiki and attunements but I still do not understand how it all works. I'm just wondering what I should expect throughout the attunements. Do you usually feel any kind of difference in energy and the chakras right away?