I like it but prefer the spelling Raina (or Rayna or Reyna). There's nothing technically wrong with Reina, but it reminds me strongly of Reign, which seems tacky.
My mother's friend's name is Reina and I've always liked it. The meaning 'queen' is a little tacky to me but the attractiveness of the name surpasses that impression to me, especially since the name Queenie has grown on me as well.