Both are much slower than we are used to with Steem and Hive, and EOS for me, and have some fees that are no fun to pay. I'd only do it if you want to hold them long term. I am starting to dig Blocktrades as that is what I used to convert Steem to Hive. It was super easy. I think I will be using it more going forward and think it would work good for BTC and ETH.