Mamaroo or Snug A Bunny?

I am 25 weeks pregnant with my first child, a baby boy, due in August. My husband and I are preparing our baby registry and are at a cross roads as to whether we should register for the Mamaroo or the Snug a Bunny? I have hear pluses and minuses for both and they are relatively close in price. Any insight into either product would be a great help!