I was a member of Joy Christian Fellowship (now Joy Church Medford) for years. If you visit, you will find the worship engaging (if you enjoy charismatic style worship), and the members will be friendly. The preaching might impress you for its emphasis on holiness and faith, or if you have a good sense of smell it might alarm you. Although most of the doctrine taught at Joy is within Christian mainstream belief, Joy bears the marks of a cult. These characteristics include:
INVOLVEMENT and serving stressed to the detriment of family life, personal life, and health. One is always encouraged and even badgered to serve and become a leader, and the deeper you get involved, the more attendance and service is asked of you.
OBEDIENCE TO LEADERS EXPECTED in personal decisions. I have seen young people discouraged from going to college because it takes them away from their commitment to the cult. Dating is heavily discouraged, and the leaders want power of approval or disapproval over potential relationships. Leaders will pressure you in all manner of life decisions.
FUNDRAISING IS RELENTLESS AND SHAMELESS. Joy teaches that your financial blessing begins with a baseline of tithing 10%, but you will be supernaturally blessed for the percentage of your income above 10% you give.
WHEN PEOPLE CHOOSE TO LEAVE THE CULT, leadership maligns and discredits them to the people who remain. I experienced this many times, and unfortunately I believed my leaders until near the time I left, when I then became the object of this treatment. Cult members will be implicitly and explicitly discouraged from remaining friends with those who leave. Most people who leave receive a curse of some kind like "Your children will grow up and hate God" or "Your marriage will not last", or even "PEOPLE WHO LEAVE JOY OFTEN DIE PREMATURELY."