I've enjoyed the Tropico series since the outset a decade or so ago. This expansion is pretty good, and some of the buildings definitely eliminate some of the frustrations from previous incarnations (i.e. farms required far too many people and space; the Eco farm is a perfect replacement). It is a bit minimal for the price, but that's often the case with such things.
The big problem I have with this is that it's just too easy. Tropico 3, its expansion, and the original 4, did have a number of quite tricky moments, but here, thanks largely to the Eco farm and Borehole mine (each requires just 3 or 4 workers, and can happily supply more than one whole industry building with resources), making silly amounts of money is just too easy. For each level, build three or four mines/farms, and you're sorted. I rarely moved off of "full speed" mode throughout.
Furthermore (more so in 3), the campaign levels used to last quite a while. This time round, you start to build up a decent island, and suddenly *bam* you've won the level. Because of the way the levels are structured, you only get one task at a time, and so you don't usually get to foresee the end until it hits you, which means you don't get quite the same sense of satisfaction. The tasks themselves are all pretty similar: build a certain building or ship an amount of a specific export, usually while some force or other destroys your buildings every now and again. The characters have been well thought out, and are humorously stereotypical, but other than providing a quick chuckle, they don't really add much to the gameplay.
Still fun, though. And definitely more so than physics revision (which I should get back to now!)