Example of the statement of work for writing review texts

Task: 

Write a 100 review texts for Viber mobile app: https://itunes.apple.com/ru/app/viber-messenger/id382617920?l=en&mt=8 

Requirements to content and uniqueness: 
Everyday language, reviews should not look like they were paid for. 
Everyday Russian language, colloquial. A few spelling errors are allowed. 
Please, examine reviews for other apps on iTunes to understand the topic: 
- <link to rival app> 
- <link to rival app> 
- <link to rival app> 

Requirements to texts: 
- review must contain text 
- 20 to 150 characters 
- preference for the length of 70-120 characters 
- mostly genderless expressions 
- two identical reviews are not allowed 
- reviews should describe not only how cool an app is, but describe the experience of using the app (small bugs in work, options, feedback, etc.). But all should be positive for the 5 star ratings