I spent quite a lot of time walking in non-tourist areas, particularly small towns with dirt roads. I met a few locals on different occasions and visited their poorly built houses with no A/C, insects walking everywhere as the door was open to let the wind in, and pipes leaking.
The stores are also severely limited in supply and prices were high for everything.
The people were clearly depressed, which was apparent undertone even as they feigned niceness to the foreigners.
I'm honestly shocked at people with a clear ideological agenda who try to pretend like their economic experiment wasn't a complete failure.
Other parts of latin america and caribbean might be poor but Cuba could have done so much better. You can tell they are a strong-willed industrious people who work hard.