Bests & Worsts Reviews from Amazon

Most negative reviews say that pH and N test results are not good, where PH is always neutral and Nitrogen is always depleted, some have actually said that they tried even adding vinegar and pH would still be 7 and such. It is a cheap kit so I bought one, I tested my soil and guess what, I got pH neutral and N depleted, actually N test chamber was very clear without any color like fresh water. So I done another test, only adding a few drops of lemon juice to the pH test chamber, and a solution of uria (48-0-0) to the N test chamber instead of soil water, and after some good shaking, the pH was yellow and the N was purpule, I have attached a picture and you can see for yourself. When this test kit tells you the pH is neutral it really is, and when it tells you have no nitrogen you really don't, and you better be spraying a whole lot of it till you get it to "adequate" level.