i got the dl4 but am returning it. i like it ok, but this:
http://www.eventide.com/AudioDivision/Products/StompBoxes/TimeFactor.aspx has some serious midi implementation that knocks my sox off and will expand usability. i could parameter lock the delay settings via the mono or just tweak away -- nice to have options. plus it's upgradeable. I'm picking one up tomorrow and will let you know how it goes!
thanks for the echo pro tip -- in terms of ergonomics how things are set up (I still need to take a pic!) a rack unit wouldn't be ideal for me. i realized that after researching guitar pedals at 3 am. lol. still though, the echo pro is pretty sweet. i wonder why line 6 stopped making them.
M