After watching all the episodes of this season, so far, I asked myself why I have not really enjoyed this season. My answer is that I really only like two of the people, Steve and Mike. The rest I don't care for.
Through their personalities, these people have shown why they have not found a spouse and needed to try Married at First Sight.
Also, the mid season episode where the panel got to re-evaluate the couples and next week's show are totally unnecessary.