Characteristics of effective counsellors include attitudinal skills like respecting clients and being non-judgemental. Effective counsellors also demonstrate empathy, unconditional positive regard, listening skills, verbal communication skills, and providing leads. Experience is important for counsellor effectiveness, as is establishing the right type of relationship with clients. Effective counsellors also have traits like self-awareness, maturity, and ability to maintain emotional distance. Counsellors face challenges like remaining impartial, setting relationship boundaries, navigating disjointed mental health systems, and managing their own mental health needs.