After reading all the posts (300 at the time) and doing additional research on the net. I called and placed my order. I had just cleaned my EDC (G-19) the week before and thought I would give it a once over. Gunzilla did pull more out of the gun and I expected that, I've seen that before. Clean it, come back a week later and clean again, still dirty. I had a class that week and wanted to see if it made a difference after the gun had been cleaned. Went thru 270 rounds in class and spent the next couple of hours cleaning. I will say I had no malfunctions during class and the gun came clean very easy. No hard scrubbing to get the burnt powder off the gun. I am impressed, this is a very good product that does what it says it will. On a side note I did have a little surface rust on my rear sight that I had been trying to remove and keep away. A Q-tip with Gunzilla on it was all it took and the rust has not come back.
A friend came by and started to clean his gun at the same time. He later called and said his gun had not looked this good since it was new.
Don was more than helpful on the phone answering the few questions I had. One thing I did not know was how much he sent our troops. If you do order some for your home, buy an extra bottle for the troops. They need it more than we do.