I started writing reviews last week and so far I have written over 100 reviews.
Its been a good as it is improving my writing skills.
Always be real. Be yourself. write reviews based on your experiences.
Include things which are mentioned as Hints over the Top right box. The hints are very useful.
Try not to use foul language, you can be critic, but dont be abuser.
And still my reviews are getting rejected. A quarter of my reviews have been rejected, thats the sign that I am yet to reach the top standards of practice followed by MouthShut.com