You you appreciate solid growth and achievements overcoming life difficulties, supported by love and trust you will feel rewarded with this drama.

The behavior of characters and family life context portrays what seems to be much closer to reality than fantasied dramas. This would be something that would normally putt me off watching it - concubines, hard mother in law, plotting and meanness - however the way the ML ad FL navigate through all the difficulties with steadiness of principles, trust and loyalty is very rewarding. Even the concubines setting is laid out in a way that the love of ML for FL is never tainted and in general most characters grow and become better human beings through difficulties and forgiveness within reason.

As for the amount of wickedness, unpunished mean deeds and consequent frustration at times, I would prefer to dose it down, however I opt to fast forward when its getting too much for my personal preference. That is why I give it a 10/10