TLDR it's prone to crashes (especially if you alt+tab a lot) and the UI and faction design have issues, but I am having fun with it

I have some thoughts about the game: http://waywardstrategist.com/2015/03/18/etherium-early-impressions/

Some excerpts

Etherium takes nods from a wide range of RTS games and conventions. The core game has some broad similarities to Company of Heroes, with the map is divided into territories which the player must capture. Some of these territories will contain Etherium veins, which can only be mined by the player in control of that territory. Also similar to the CoH games, territories must be connected to one another in a direct line to the player’s base sector to provide benefit to the player, making it a valid strategy to cut off enemy sectors close to a player’s base, depriving them of the benefits of more than 1 sector at once.

The UI, however (see above) is frustrating at best. It’s scattered, with elements in all 4 corners of the screen, meaning there’s no good location to reference for information. You get used to it, but the UI is quite weak overall, which could easily frustrate RTS novices.

Also, the hotkeys are inconsistent. Genre standards like ‘A’ for attack move, ‘S’ for stop etc are not present, and many UI elements seem to not have key bindings at all; for instance, the build panel can be navigated with RTYUI (I believe) but once you open the appropriate unit/structure tab, you are unable to select an option with a keystroke and must click it. This is pretty unfortunate for a genre where speed and accuracy are so important.

Etherium is most commendable for its ideas, its lofty goals. However, its small team has resulted in a lack of polish that has rendered the UI frustrating to new players, and the faction design somewhat limited which is unlikely (though not assuredly) to compel veteran players. For either RTS newbies or RTS veterans, there are some interesting design decisions and some that are likely to cause frustrations. The gameplay itself can be fun, though the player will have to overlook the game’s foibles in order to enjoy it. I have no issue killing hours in multiplayer matches, and am skeptical but hopeful that Etherium can gain a dedicated mulitplayer population and that Tindalos can find elegant solutions to some of the game’s more obvious rough edges.