I have only just installed it a few days ago and am yet to see if there are any annoying features, but so far it is excellent! Nothing is locked behind a paywall (that I noticed) and although I found a few bugs with the layout editor, now that I've saved my layout I have had no issues :)

Here is the bug (and how to get around it):
BUG - Reverting a section from a full row/column back to a smaller card pins it to the bottom corner and blocks all positioning options
FIX - I was able to get around this by toggling the element's relative option in the settings menu (essentially turning the broken element off and on again)