If you are using Scrum without the support of a Certified Scrum Master, it is no doubt limiting the platform from providing all the advantages it can provide to your project executions and the scope for which it was developed in the first place. A CSM can open myriad possibilities and opportunities Scrum can bestow upon your projects, which are unheard of yet for you. This can obviously be immensely helpful for successful execution of your project.
As a thoroughly trained professional in the platform, a Certified Scrum Master understands exceptional operational capabilities and possibilities of the platform to drive enhanced levels of efficiency, quality and customer satisfaction for all the parties involved. Apart from this, the CSM can orient and expertly facilitate the learning curve of the team about the platform with the flawless knowledge he/she possess that is even beyond that of many experienced project managers in a company.
When certified in Scrum, your career prospects will naturally be better; you will be preferred by most companies as you can help them improve their efficiency and productivity through, better utilization of Scrum. Further, you will have the privilege to interact with expert and developer communities and enhance your skills, again.