When it comes to relationships, there are few basic factors that you will always have in mind and they are:
Understanding: No matter how good a person is when it comes to matters of the heart, as long as they are unable to understand you as a person, then such relationship is one that I won't advise you go into. I understand that he is far older than you, but you should put the understanding factor into consideration as well when deciding what you want.
Love: The relationship should not ruin you if you are sure that he is truly in love with you. One thing about love is that people can never force it and you get to know about true love when they have dated for a longer period of time and still have the love in them. So, check how much he loves you before deciding what to do next.
Also, there are other good points such as how he reacts when annoyed as well as how financially okay he is, but the above two that I mentioned are something that you should be serious about when thinking of this man.