No yogas are completely good or bad. Every yoga has there own advantages and disadvantages. Yogas creates a special situation in life and takes you through that vibes as long a the period of the yoga is running. Moon-Ketu combination is also among them. Whether this yoga is good or bad or not depends on what type of life you want. If you are looking for extreme material comfort and this yoga is connected with 1st, 2nd, 7th, 10th, and 11th houses in your chart then this yoga will be proved as bad yoga or combination. But if your objective is to dive into the mysticism of this universal existence with a moderate amount of wealth (where wealth is not main) then this combination is not going to disturb your life at all.

Ketu represents spirituality and mysticism and will burn everything which will be a barrier in front of that. Moon represents our mind. When these two planets come together makes the person bit introvert, intuitive with high psychic abilities. Always some kind of conflict is going on in their mind (especially if this yoga somehow connects, 1st house, 4th house, and 12th house of the horoscope), due to that, they face sleep disturbances at night and try to stay isolated many times in life (in some cases throughout the life).

These types of people are very sensitive and not good at handling love relations of modern days (because in modern times, love relationships have become more physical than mental). Thus, if they go into any relationships the partner cannot understand them properly and in maximum cases, they go through the breakup phase of life. It becomes very painful for them. Breakup is painful for anyone but for these natives, this becomes terrible due to their sensitive mind.

This combination will keep you away from that material happiness in which house it is formed or made a relationship with. If Moon and 4th house are strong in the chart then these types of people can become psychologist and healer of any kind.

If this combination is formed in 8th and 12th house then until the middle age the person remains very confused that which is the right path for him/ her. 8th and 12th house Ketu-moon combination actually point to a pure spiritual path, as long as the person will behave as a materialist person he/ she will only face obstacles, depression, and all types of failures in life.

The above result may vary a little on the basis of other aspects of this combination like the Nakshatra, the aspects of the other planets on this combination, etc.