Advantages: You only need to submit one application at a time. Use in any member country is deemed to be used in 25 countries. The transfer, change or renewal of the trademark will be effective in 25 countries; the registration fee is low. Registration, renewal, etc. are much cheaper than registering on a country-by-country basis.
Disadvantages: Since the 25 member states use different languages, there may be similarities in the meaning or pronunciation of the trademark. As long as someone in one of the 25 member states raises an objection and the objection is established, it will lead to The entire *** homogeneous trademark registration was rejected. Although the rejected trademark can be converted into a national application and the original EU trademark filing date is retained, the applicant must also pay the conversion fee to each country.