It would depend on how you define non-commercial. My hubs are largely book review, with links to various sites for people to buy the related item. I don't think they are very commercial though. That's more a by product of the book review nature of them.
I don't know that you would really want to make your hubs overly-personal though. I think the idea the site is going for are topics that other people can find useful, and personal stories are nice, fun, but not necessarily useful.