"Is bittrex the only other option?"
I don't know but I'm using Bittrex.
What is (is anything) wrong with Bittrex?
I never tried to withdraw any funds from Steemit so far but I used Bittrex to deposit 0.864 STEEM (0.00069514 BTC / $2.11 USD) into my Steemit account 7 days ago.
Works fine for me.