The 'institutional' church of any religion is just that--an institution.  It provides traditions to give folks a 'map' to navigate through the chaos of life.
We are all on a spiritual journey to union with God, the Great 'I AM'.  Each of us follow our own course (highway, country road, bike trail, hiking, riding a train, etc..) You find great comfort and security in the orthodox teachings of the RCC.  I, too, am a cradle Roman Catholic but I find great comfort and security along the mystical/contemplative road of the RCC.  It is an ancient path with a deep and lasting spiritual tradition.   The four criteria that Tom listed are the guideposts, the mile markers for we who are journeying along the contemplative path.  We are no less nor more ''catholic'' than another.  The only truth we need to justify is being true to the Great 'I AM' that we encounter along our journey.