I think it would be fair enough for us to discuss the political /social situation one would find in Cuba, if one were to visit on a railfan trip.I would certainly want to know if i was lucky enough to be contemplating such a trip.
Lets not discuss the past( Google should provide plenty of answers/opinions there), keep it civil , and avoid the use of inflammatory names etc. And lets keep it to how it would effect a Traveler there, not the political relationships between countries etc.
Whilst I would probably stay in a hotel with a few less stars than Mr Norman, I do imagine there must be some gems from the previous eras that have survived, and are a relative bargain.
I also wonder if the railways will survive the next few years , presuming greater trade with the USA, combined with the recent drop in oil prices(if it lasts) , I imagine a proliferation of trucks and private automobiles.
I suspect riding the passenger trains asap would be a good plan.