I like a lot text adventures, these are one of my favorite classic genres, if not the most! It's a genre that has to emerge again, IMO.
I think it has a lot of potential, and like to see more in the future, really.
The most important downs of the game are that I feel that navigation through the game world is not very intuitive, cardinal points are almost a universal standard in text games, and players expect these... and that "enter" should enter the command... but nothing new aside from other comments.
I suggest you check Inform 7, a framework for making text adventures with an extense library, if you are interested in text adventures ;D