I just recently discovered these games, not even through this thread, can't remember how, and I played the demo for
Panzer Campaigns: Mius '43.
I would actually call these tactical rather than strategical, since there is no grand strategy to it. You have a closed map and units to move around. That's it. Apart from air attacks, which are essentially temporary units. There is no production, and from what I can tell, nothing apart from separate battles with no dynamic system.
From a technical standpoint, it's dreadful.
It's very ugly, there is no polish whatsoever, and almost no thought was put into the interface, where you have to keep clicking buttons to perform simple tasks and go into nested dropdown menus to access some functions. To give you an example, you can search for a unit by its name, but you have to use the exact correct case, otherwise it doesn't turn up anything.
During combat, the reaction fire makes everything frustratingly slow, and you can't alt-tab while it's happening, meaning your computer is essentially locked and you have to wait for the game to give you the control of your PC back.
Tactically speaking, I played as the Russians in the Mius battle on standard difficulty. I was anticipating to lose badly, expecting a hardcore game that only the best can master, but I actually won very, very easily; I destroyed the entire German army, losing 17,951 men to their 47,196, on turn 54 of 66 (the last few turns were spent hunting the remaining Germans). And that's with the Russians having to attack the heavily fortified German defense line and face the mighty panzers and 88 cm flak cannons.
I'm currently playing the same map on the German side to see if they are just at a massive disadvantage, or if the AI is simply shit.
That being said, I think I'll buy one of their
Squad Battles game, since I prefer that scale, where you don't have to move a thousand units and always feel like you've missed some when you hit the End Turn button, and the enemy turn doesn't take literally several minutes.
In summary: Other companies (Matrix, Slitherine, etc.) have put more effort and budget into the same sort of thing and have done it better.