I wanted to trade ethereum for theta. I looked everywhere for a way to do it. Finally found CoinSwitch. I had some ETH in a Coinbase wallet. I setup a Theta Wallet, made a CoinSwitch Account, and got my addresses ready. Coinbase put a 72 hour hold on the trade. CoinSwitch expired the order because it was taking so long. I contacted CoinSwitch and CoinBase and CoinSwitch reactivated my order, and very soon I had the Theta in my Theta Wallet. It took longer than 10 to 15 minutes, and I had to watch the transaction, but I am 100% pleased, and I have already referred a friend to CoinSwitch. I highly recommend CoinSwitch.