The »rocket science« behind my reviews

I have a really special bond with testing and reviews (if I’d use a word fetish at this point it wouldn’t be totally off), so I would like to say a word about my reviewing »system«.
Basic principles
First I’d like to point out my basic principles when reviewing a subject:
- I only test products, treatments and gadgets that I deem suitable in terms of quality
- I write a review only after a suitable amount of time invested in testing, depending on the subject. Suitable mostly meaning long enough to appraise all possible short & longer term characteristics of the subjects
- I don’t believe in perfect cosmetic products or perfect cosmetic lines, albeit I’m looking forward to surprises
Review Recap!
Second, my reviews are composed of a (classic) moderately detailed explanation and a review recap. The latter is perfect if you’re not into reading, as is mostly a nice picture with a few stars and key information about the subject:
Star reviews
The review subject collects stars in the following categories for each product type:
Cosmetic products review categories:
- Ingredients: are the ingredients good?
- Packaging: is the packaging suitable, practical, hygenic, etc.?
- Texture: is the texture suitable, too thick, heavy etc.?
- Price vs. Performance: does the effectiveness match the price?
Beauty gadget review categories:
- How to use: is it easy to use, is it comfortable to use, etc.?
- Quality: is it well-made, from quality materials, etc.?
- Maintenance: is it low maintenance, is it sustainable, etc.?
- Price vs. Performance: does the performance match the price?
Treatment review categories
- Service: is the person performing the treatment nice, professional, was the treatment pleasant, etc.?
- Product Quality: are the products used in the treatment of good quality?
- Results: are the results visible, satisfaction with results, etc.?
- Price vs. Performance: does the performance match the price?
The maximum number of stars is 5 and minimum 1 in each category. Upon the total number of stars, the subject gets also a recap review with my expression:
1-7 stars: Amm, nope

8-15 stars: Hmm, Okay

16-20 stars: Tixiapproved

Key information
Beside the stars review, key infomation is also provided: price, origin, where to buy etc.
Check how the whole package looks in one of my reviews! And if you can spare a minute, please tell me what you think.