Neat concept, insultingly bad gameplay.
First of all, I'll say this: even with GOG's great refund policy, I'm extremely glad I got this game for free. The idea behind it isn't bad at all, but it's executed so shoddily as to be outright insultingly bad.
The entire "the weather is randomized and therefor your harvest is too" idea is absurd. Do the devs think even the most modest vinyards these days handle their crops like it's 1782? There is nothing, and I mean NOTHING, you can do to counter-act the insipid RNG weather system. If you're unlucky, you can get screwed over with 5 straight months of rain. Honestly, can you name one single place IN THE WORLD where grapes are grown and you randomly get 150 days of non-stop rain? No, you can't, 'cause such a place doesn't exist!
Adding to that, there's an extremely unfair level of "gain vs cost" with the production and sales of wines in the game. Even if you manage to ace your harvest and produce a 5-star wine, the sales of it never counter the expense of its production as well as the upkeep cost on your vinyard, meaning you will always, and I mean ALWAYS, lose money early on. Seriously, how the hell could the devs be so inept as to mess that up?!
That's not even mentioning the utter BS with "fungal rot" and whatnot. In the 3 or so hours I could stomach playing this miserable crapshow of a game (knowing I'm new to the game and thus needed a bit of an "easing in" period) I decided to play it on the easiest difficulty level. The game claimed easy mode "reduced frequency of fungal rot" or some such bollockry. This was an outright stinking lie. 7 years in a row, every single crop of mine suffered fungal rot which not only drastically reduces the quality of the wine if harvested while the grapes are afflicted by it, but which also ALWAYS reduces the year-end yield of the crop by a whole 30% PER MONTH OF AFFLICTION! That's insane! And there's NOTHING you can do to counter-act it either!
Simply put, this game is GARBAGE, and I'm glad I didn't waste my money on it.