its a place I've always wanted to go, since reading about it in a book - I think it only opened its borders to visitors fairly recently - within the last few years - correct me if I'm wrong. I guess sooner rather than later is the best time to go, but at the moment circumstance does not allow for that sort of trip.
Oh its defintely worth a visit and not just a sandwich.
When I was in the area I added it on to my itinerary due to rave reviews from other travelers. I am SO glad I did. I spent many happy weeks there - Vietianne, Vang Viang (I'd skip that next time), and Luang Prabang in the north. It's quite unlike any other Asian country I've been to.
I've written a few hubs on Laos if you would like to check them out. Happy traveling!