TypeORM Query Builder vs Repository API — khi nào dùng cái nào?

const users = await this.usersRepo.find({
  where: { isActive: true, role: Role.USER },
  relations: ['profile'],
  order: { createdAt: 'DESC' },
  take: 20, skip: 0,
});

const result = await this.usersRepo
  .createQueryBuilder('user')
  .leftJoinAndSelect('user.posts', 'post')
  .where('user.isActive = :active', { active: true })
  .andWhere('post.publishedAt > :date', { date: lastWeek })
  .select(['user.id', 'user.email', 'COUNT(post.id) as postCount'])
  .groupBy('user.id')
  .having('COUNT(post.id) > 0')
  .orderBy('postCount', 'DESC')
  .getRawMany();