As pointed few times before, I think ‘experiences’ properly refers to events in the world (part of whatever is going on) in which subjects take part. Events by which they are affected somehow or from which they learn. Also ‘experience’ can be used to refer to the knowledge gained in that way.
But if that is so, the talk about “content of experience” doesn’t really makes much sense. If we need to speak about things being in the experiences, we can speak about objects, their relations, properties, and so on. So, the questions of what kind of content there is in our experiences, seems to me as the wrong question to ask. (Same goes about the issue if the experience is thick or thin)
What can be talked about are however different relations between subjects and the things within the experience. Here we can talk about the subject being aware of this or that part of the world, not being aware of this or that part of the world, mistaking one thing for another, being subconsciously affected by this and that and so on.