I just started playing this game yesterday on Kongregate and got to about 70 points. Today I came home from work and started playing again. When I started the game, I noticed a little "disconnected" icon at the top. I reloaded the game a few times but it didn't go away. Unsure what this meant, I proceeded to play a game. After the game, the icon changed to "Saving" briefly, then went back to "disconnected". Since the icon had said saving, I made the assumption that the save had succeeded, but the game was having trouble staying connected to the server.
Six hour later, I'd made it up to ~350ish points and significantly re-worked my deck as I learned. I accidentally closed the window, then upon reloading the game realized just what that little "disconnected" truely meant.
My feedback is this: If progress is not being saved, *MAKE IT PAINFULLY OBVIOUS THAT THIS IS THE CASE*. Flashing between "disconnected" and "saving" without any real error message is highly ambiguous.
Anyway, this lack of a proper error message has cost me 6 hours of game play and completely soured me on the game. I will not be playing again.