I am looking into opening a Roth IRA, and am interested in Vanguard. I'll likely invest it in a Target Date Retirement Fund to start with, and then perhaps move it into VTSMX or VTI later on. I am a novice investor, and would like to eventually become more savvy, however, I would also like to get started now. Is there an advantage to Vanguard or another service such as Betterment or Wealthfront for someone in my situation with my level of experience?