I'm enjoying it so far. It's very tough, though. I mean, I love word games, but it's pretty brutal and seems to rely more on reaction time than vocabulary knowledge because you really don't get time to think.
Still, I love the presentation and look and feel. I'd like to see some different skill levels perhaps – easy, medium, hard – just so you can play a bit more of a leisurely game (right now, I'd say the skill level is hard!), however I understand if your desire was to make a quick fire word game.