Consulting with SAP is very demanding. The travel requirements are immense and can really drag a person down. By being always assigned to projects, you may find you are the forgotten revenue source. That is, you will never interact with your bosses, or the firm's executives. You will bill lots of money for them, somewhere, and you will only ever hear from them when you make a mistake.
Thus, recognition for all your sacrifice is very poor.
The salary is good, and you will learn a great deal, but you will likely feel very isolated as a consultant.