I've been using this for a long time, and I just realized I should probably write a review. This program is simultaneously the bane of my existence (I almost always leave it running on my laptop, and during class I'll often start typing- not notice that it's running out loud because i'm so used to it, only to realize my frantic note taking is extremely distracting to those around me) and my savior (it makes it so much easier for me to be able to type. The instant feedback of knowing I actually hit a button is such a good accessibility feature that it's kind of messed up that this program isn't built into windows.)
I love this extremely lightweight program and I love that it hides in my taskbar for easy access at any given time.