Working fine for me!
SW2017 SP5 is when they finally get everything done that they are going to do before they start fixing SW2018.
Just downloaded and installed. Forgot to check here 1st. Have not used it yet.
I noticed today that sp5.0 is released, and went to look for the list of SPR's they fixed to see if it's worth upgrading from sp4.1, but I can't find it. In the downloads section the list of fixes starts with sp4.1.