Hmm. I'm kind of torn here, because even after cursing heavily at them, I would like to think this game's cruder problems aren't that bad.
1000A is a grayscale 'metroidvania'. Everyone knows what those are. The world in this case is an "amp tree", some abstract stand-in for computer I suppose, and the player is a sort of a repair device. The graphics are a rather exciting case: everything is displayed as simple symbols! This reminds me of old Paradroid!
The controls are a little strange. You use the wsad key grid as a typical platformer setup and, surprisingly, the mouse for teleportation: click an empty part of the screen, and there you go! I haven't played an exploration game with combined controls like that before.
So, what's wrong with the game? Well, one of its unique points is that for most of the game, you are wading through levels with a very limited line of sight. Only by touching objects will you discover them. This makes for either an interesting, careful sort of gaming or a horrible chore. I thought it was mostly good, but other times when accidentally walking off the screen would reset the view, it felt like a cause for frustration and a glaring problem.
Another problem is that you can occasionally get yourself into a cul-de-sac, requiring quitting and reloading. I think the game autosaves every few cleared screens. You can tell 1000A's been designed to minimize the chance of getting stuck, but I messed up about five times during my run.
The last issue is the map layout. Sometimes the route from a to b is a ridiculously long detour: Especially for a completionist run, some of the parts of the game map read like a designed ♥♥♥♥ move: you essentially have to traverse the entire vertical span of the map once or twice too many times if you're planning to get that 100% completion.
Still, 1000A was a very good little exploration puzzler. It took me about 8 hours to beat, but I did check out every screen on the map. It's definitely worth its price if you value the genre and are willing to play by this game's rules.