I, me and myself

Well, easy way to judge is to think for yourself if the reviews sound naturally, e.g. would you put it the same way with the same (or similar words) if it were really you, who "used product xxx" or "worked at company xxx". Some reviews sound plainly artificial, fake and on purpose, just like fake facebook accounts;-)

Just to clarify, using the first person 'I' when making a review is an effective strategy as most people rely on personal recommendations from friends and acquaintances online. The more trust worthy you are, the more likely someone is to buy from you.

As to whether or not this person is telling the truth, maybe not. It's probably just a paid endorsement. You'll have to use your own best judgement as to whether or not the product is worth your time and money.

Counting how many Xs

So you mean when I get to read a phrase that starts with those, then it would be considered a quality content blog site?

In my initial days I use to buy products online only on seeing reviews, but stopped reading online reviews once I come to know that most are fake reviews or bot reviews.

But still there are lot of people buying on seeing those reviews.