Choosing a professional tool from a trusted manufacturer can help you avoid many problems. In this context, I can recommend the online store ecutools.eu . They specialize in professional licensed tools for car diagnostics and chip tuning. Their website offers a wide range of high quality products from leading manufacturers, which guarantees reliability and accuracy. It is also important to consider price and value for money. A high price doesn't always mean better quality, so look for the best balance. Read reviews, consult with other motorists and professionals. To summarize, the right choice of diagnostic tool requires consideration of compatibility with the car, functionality, usability, software upgradeability, quality and reliability. The ecutools.eu online store is a great resource for finding the right equipment. I hope this information was useful and will help you make the right choice!