Correção de texto: "Cosmetic Surgery"

In a recent past, several people didn't use to undergoing a cosmetic surgery due to quality of equipments which were available. They weren't reliable at all. Nowadays, a great advance of technologies and the knowledge of some doctors, give to people a hope that it can be a success. Although these procedures has been approved by many people, it's important to check what equipments are available, where is located the clinic, how feel people that already performed a comestic surgery there, etc. Everything it's important to question for haven't a frustration in the future. About the pros and cons we can cite that people can feel better with their appearance, but, on the other hand, if you fell unsatisfied with the change, it's almost impossible to revert it. So it's crucial be decided about what you'll do.
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My corrections and changes to your text are shown below:

In a recent past, several people didn't use to undergo cosmetic surgery due to the poor quality of the *equipment which was available. **Sometimes, they weren't reliable at all. Nowadays, a great advance in technologies and the expertise of some doctors, give people more hope of success. Although, these procedures have been approved by many people, it's important to check which equipment is available, where the clinic is located, how past patients feel, etc. It's important to question and analyse everything so that you won't be frustrated in the future. Weighing up the pros and cons we can say that people can feel better with their appearance, but, on the other hand, if you are not satisfied with the change, it's almost impossible to revert it. So it's crucial to be certain about what you want.

*"Equipment" não tem plural (incontável).
**Não generalize.
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