Binaural beats are popular and used by reputable people. However, I've never liked them because they feel mechanical to me. I do believe this music has a place for people who are working out their meditation and astral traveling, and I think it is fine.
At the same time, it is a tool to help you get somewhere, and there might come a time when you are able to do so on your own without external aids.
For me, I am blessed with the ability to slip into "another place" fairly easily but realize that this is not the case for others. So, I think it is fine if it works for you. After some successful trips or experiences, it might be interesting to see how you do without the aid.