Blues: the Absolutely Essential

For the evaluation of this article we have taken into account the following:

• If the price of this product is in accordance with its quality.
• The degree to which this article satisfies the need for which it has been manufactured.
• Whether this article is better or worse than articles of the same type and segment.
• If the product is available and there are normally stocks, or there is usually a reservation period.
• If the product is easy to use and offers clear information and instructions for use.