I took the mindfulness meditation class a couple of years ago when I was having all my weird medical issues. It was a 2 month course. I fully admit i was not the most engaged student (i.e a whole day of not talking and walking meditation??), but it does work. I use the mountain and sitting meditation cds pretty frequently. Somehow, I am able to do it at home with no issues.
I am studying holistically based counseling theories in my grad program; the whole premise of what we are learning is based on mindfulness. I will be definitely be using it in my internship practice this coming year.
I think for someone who is a type A person like myself, it has to be a process, that is taken very slowly. Sometimes, I just use some of the breathing techniques.
I am now taking a yoga/meditation class that uses a lot of the mindfulness principles. I find that it is harder for me to focus in the class than when I practice at home; part of it is that I didn't realize that this class was going to include some "sharing" at the beginning and end. While I don't mind talking about how the meditation practice is going, I didn't go into it with the idea that it would be a group "session." But, it is good for me to experience the things I intend to use with clients.