Well, I'm back. I downloaded the Windows 10 version from the app store and have now played 50 games (82% win percentage). Not a huge sampling but it's already apparent there are a number of obvious differences from the Windows 7 version. The biggest change is that the computer hands are now much more "human." Not always a smart human, but human nonetheless. In the windows 7 version you could guarantee the computer hands would not take a trick unless ridding themselves of the Ace or King of Spades. This is no longer the case and if you play with that in mind you will probably be picking up 20+ tricks as the computer will save something unexpected to trap you and maybe take a trick with the last card. The good thing is that it will also do that to the other computer hands so that (for the most part) they do not gang up against you. On the whole, the hands are not as badly rigged as previous. In the past if you got behind, the computer tended to just pile on giving you horrible hands where your only real choice was to try and shoot the moon to win. Shooting the moon is also not quite as easy because of the previous mentioned unpredictability of the computer but its still really not that hard. In 50 games I have shot the moon 52/53 times (can't remember exactly, but this is one of the new statistics that is now recorded).
On the whole, I believe I like the Windows 7 version better. It was always such a challenge to beat the computer when it gave you what it considered really bad cards. Having said all that, I really didn't like the Windows 10 version at all when I first started playing but it is starting to grow on me.
Anyway at least I've got back some version of Hearts and can keep on playing.
Happy Hearts playing,
lawman