personally i like the microbe-lift products, use the special blend first then go to the nite-out 2, ive used this method on more then one system, couple years back at macna i went in prepared for a few of the companies, with questions and had done a little research before going, so that i could actually ask questions back as they gave me replies, few companies i am sure didnt expect me to know certain things. microbe-lift has been around for awhile, close to 30 years, one benifit to the web is you can do alot of research to find out there is only a handful of companies that really make these products, and alot of other companies who re-label other companies products and sell as their own. do a little research on microbe-lift and see what i mean, btw i have used dr tims, mb 7 and forget the other company, the nite out does what they say, lol when i use to actual test stuff, i did what they had told me and kept track of everything, and it did work, i didnt go in expecting much, nor do i ever but i was impressed, they had actually given me stuff to try and asked me to record and test and send them in the results which i did. btw i am not affliliated with nor do i recieve products from them