Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
6.1 although we aim to offer you the best service possible , we make no promise that the products will meet your requirements and we can not guarantee that the products will be fault free . 

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. OPTIONS: ["Unilateral change", "Choice of law", "Limitation of liability", "Arbitration", "None", "Content removal", "Jurisdiction", "Unilateral termination", "Contract by using"].