I am now running Logos4 exclusively on my laptop -- Libronix has been uninstalled -- only book files left behind are PBB files (waiting hopefully for the day these can be read in Logos4).
What made this the right time for me? It became apparent after Logos4.1x and now into 4.2 that we have definitely moved beyond "Beta" stage -- the program is maturing nicely and deserves to be trusted for serious study w/o need for an old familiar crutch to lean on.
Would I ever be tempted to reinstall Libronix -- only for an exceptional book deal that can then be upgraded to version 4.
My $.02 anyway -- your mileage may vary.