I have not personally upgraded to Logos 5 though the packages are very tempting I just don't have the fundage to do so at this time. I do hope to have the new engine very soon and maybe some sort of crossgrade, until then, my Logos 4 that was great last week is still great this week.
But I wanted to say thanks to Logos for all the extra stuff that I have recieved. Such as Faithlife Study Bible. This is a great free tool that helps me find articles in my library that I may have overlooked as I study a passage outside of my normal commentary. There are other aspects as well but I just want to say thanks.