First and Foremost....Honestly.
Most times, I never read other reviews or testimonials when I am attempting to create one of my own.
When people seek to read experienced reviews from individuals which are based on a certain product...they most times want to get an honest review, not one that is influenced or chimed down because of what some other fucker said about it when they may have had a great product, but a lousy day and was already in a negative mind-set.
Say this lady got this brand new strap-on to use on her girlfriend. Things were great....but, for some reason before she could get into the area to submit her review...her girlfriend flips out and breaks up with her. The customer, is all strung out, and just throws a review out like, "I wasted my money..." But the truth may be that her girlfriend broke up with her because she spent over $200 on this fancy-nancy strap-on, when it works, performs in every aspect as well as the $35 that her girlfriend bought her for her anniversary 2 years ago.
So, yeah, just give it out honest...and before you read what others have written before you.