gistfile1.swift

// Using LumaJSON
if let parsed = LumaJSON.parse(jsonStr) {
    if let firstCommentText = parsed["user"]?["comments"]?[0]?["text"] as? String {
        println("Luma First comment \(firstCommentText)")
    }
}

// Using built-in JSON decoder
var err: NSError?
if let jsonDeserialized = NSJSONSerialization.JSONObjectWithData(jsonData, options: .MutableLeaves, error: &err) as? NSDictionary {
    if let user = jsonDeserialized["user"] as? NSDictionary {
        if let comments = user["comments"] as? NSArray {
            if let firstComment = comments[0] as? NSDictionary {
                if let firstCommentText = firstComment["text"] as? String {
                    println("Normal First comment \(firstCommentText)")
                }
            }
        }
    }
}
else if (err != nil) {
    println(err?.localizedDescription)
}