Anyone using a Little Dot I or Little Dot II?

I am interested in an inexpensive way to improve the quality of my ipod listening experience. I currently use an airhead. I will likely upgrade to Sennheiser HD580s when I make an amp change. I would love to hear from anyone who used either of these tube amps. Thanks.
Yes, just got one and I love it. Check out my review in the forum.
I bought a Little Dot II a year ago and the mini input socket went bad In one week.. tried to make contact with e-bay seller and he never returned e-mail. So it's been setting on a shelf ever since with me unable to fix it..