We did a late Jan sailing in Equinox this year. Luminae was excellent. We dined in Tuscan Grille and Murano, also both excellent. We could not get the right times (for us) for these restaurants pre-cruise, either online or by using the shoreside Retreat concierge (when she contacted us prior to the cruise). However she told us that they hold back perhaps 50% of the dining slots and times at Specialty restaurants until embarkation. We went directly to Murano once we boarded and booked it and Tuscan too. You can also do this with your butler or with the Retreat concierge. Have a great time on Equinox- we certainly did!