I searched for info on this clinic also, since I live in Houston, and had not heard anyone here talk about it. I had them mail me a packet of information and tried to get my sister, who had inoperable cancer, to go for an interview and see what they had to say. She was never willing to go, both because she had complete faith in conventional medicine, and because the first visit would cost about $600-800. As I remember, insurance either would not cover this place, or maybe they said, "some insurance might cover some of it". The clinic is less than 20 miles from me, so I should have checked it out, but I was so exhausted taking care of her and spending endless days at MD Anderson, I never did. Also, I think it required daily treatments forever, or until you were better, and my sister needed to go back home, out of state, in between chemo and radiation. I think that normally there are some IVs involved for several hours every day.
I was most interested in their statements about nutritional support which is totally ignored by conventional oncology, and their comrehensive care approach. Doctors and nutritionists at MD Anderson (and her oncologists back home) were amazingly negative about any vitamins or minerals, and comprehensive care seems to be a foreign concept to busy cancer treatment professionals everywhere.
I was never able to find anyone to talk to who had been to the Burzynski Clinic. I looked up everything I could find on the internet and saw a lot of negatives from conventional med people. I'm not sure that is a reason to ignore it. Many things that have been dismissed by doctors have been found helpful by lots of people. But you do have to be skeptical if you have to pay a lot of money for something that you are not sure will work. If you live nearby, have given up on chemo, and have money, I might consider it.
Similarly, I was unable to find anyone who had been to "Cancer Treatment Centers of America" which have great commercials about cures, and comprehensive care. Although their high pressure sales phone consult made me feel like I was buying a used car.
It is so hard to know what to do. If the person with cancer has the energy, and wants to take control by getting all the information they can, I would encourage checking out a lot of places first hand if they can afford it. If not, it is important to find a doctor that has had a lot of experience with that type of cancer, get at least a consult at your nearest approved "comprehensive cancer center", and keep up with the research. If there is limited time left, you have to consider whether you want to spend it travelling around to hospitals, or spending more time at home with family.
Good luck to you.