My longest transaction waiting is before the segwit , took me a 1 week of waiting, that time blockchain was so lag. After the segwit its only 1hr. Shapeshift took you a day to receive? I guess the problem is in their system not with the blockchain.
Whats the longest wait you've had for a transfer to go through. I used shapeshift late last night and it still hasn't come through. I just did another one and it went right through.