A seven day cruise is always a better choice for us. We have been on both Mera and Divina several times. Just off Divina three weeks ago, did a B2B. Everything was wonderful, we feel food selections greatly improved, on evening menu they now offer “daily selections” along with four or five other choices, was great. In January doing a B2B on Mera. Hoping they too have what seems to be the new dinner menus. Comparing ships, hard to do, both beautiful, on MSC ships you rarely find a spot of rust. Divina is a more typical cruise ship plan whereas the Mera has a huge atrium which is gorgeous, really nice English Pub, steakhouse beautiful. Many cruisers feel Mera does not have enough outdoor space but we have never felt that way. If you have specific questions I “may” be able to answer.