Hi, thanks!
I go into a bit more detail on that in my longer Cuba post, yep you are right. It is definitely noticeable and strange to not have advertising, or big Coca-Cola and McDonalds billboards everywhere. However in a way it is kind of refreshing to be away from all that, and combined with lack of Internet and western TV it really was a big difference.
I've heard visiting Cuba described as stepping out of a time machine and I would 100% agree.
Awesome!