What is our first impression of the narrator (pip)?

The first image we get of Pip is of a child standing in a graveyard crying. The narration is done by a grown Pip but we quickly get a glimpse into his childhood. There is a duality here that is important to note,

"Dickens uses this duality to great effect in the first chapter, where we are personally introduced to Pip as if we were in a pleasant conversation with him: "I give Pirrip as my father's family name..." Immediately after this, however, we are thrown into the point of view of a terrified young child being mauled by an escaped convict."

Pip seems like a reliable narrator. There is nothing yet to suggest that he is embellishing or manipulating us. He seems like a survivor and a realist who has endured hard times. He also seems likable.