This fragrance is frequently discussed in wetshaver circles, and retains its popularity with users of all stripes, despite at least one reformulation in its 24 year run. It is not to be confused with its revered blue-bongo flanker, Havana Reserva, a "higher concentration" of the scent, released in 1996.*
Much is said on the internet about its busy structure, but I'll limit this review to my interpretation. Havana is essentially a 1990s "fougèriental" with a subtle bay rum lurking under a tropical storm of spices and aromatics. It is the bay rum element that appeals to wetshavers, and understandably so, but this isn't the main attraction for me. I smell Havana as one of the most complex fragrances of the last thirty years. There are so many things happening that it becomes necessary for me to detach from intellectual analysis of it, just so I can enjoy it.
Havana interests me because it is the best surviving example of early 1990s orientals. It is still in production. It is still made with good raw materials. It still smells very dynamic and "old-school." It is still quite loud, and still employs a particular fruity, high-pitched, and very animalic musk, now nearly extinct, which was emblematic of its era. If you are familiar with Vermeil for Men, Rémy Latour's Cigarillo, Balenciaga Pour Homme, Witness, and Aubusson Pour Homme, and any dollar store bay rum, just imagine these fragrances being chopped apart, and then sutured together into a massive hulking Frankenscent. This is what Havana smells like.
It has also been called a "tobacco scent," and it does feature a very clear pipe tobacco note that pervades the drydown. This, in tandem with a rich melange of woody and herbal accords, lends Havana a shimmer that is both pleasurable to wear and eternally fresh; Havana never feels boring or commonplace. An overture of lavender, anise, and tonka imparts the basic idea of an aromatic fougère, which then segues into the softer bay rum in the mid, before the whole brew coalesces into a woodsy-musky amber, similar to those found in Witness, Balenciaga, and Aubusson. No accord smells overtly synthetic, note separation is measured and beautifully balanced, and when it seems the whole thing will collapse on itself, an airy cedar cigar box element spaces everything out and saves the day.
Despite all of this, I find Havana difficult to wear, at least regularly. When I reach for a fragrance after a shave, I'm reaching for a focus. I want a fougère, or an oriental, or a bay rum, but rarely do I want all three, all at once. Another issue is its volume; Havana is a foghorn. One spray fills a room. This it shares with Joop! Homme, and thus is almost impossible to wear to work, for fear that I'll offend half the building. I can't even imagine what Reserva was like, although some claim that fragrance was actually softer.
I highly recommend this scent, not to tobacco lovers (you're better off with Vermeil), or bay rum lovers (just wear bay rum), but to those who remember the early 1990s orientals, with their rich resins, fresh spices, and apple-pie musks. If you enjoy Balenciaga PH and Witness, you'll love Havana.
*According to a response from Lauder to a basenotes member in this thread.