This is not going to be a very indepth review, but i work in a musicstore and i played with both electribes.
Programming Electribe A is very easy, select one of the two parts and just turn the knobs to make a soundsettings. If you use a sequencer you can record all knob movements because they transmit NRPN (the internal sequencer only has memory for moving one knob per part). The machine has a built-in distortion which sounds very aggressive, a tempo delay (adjusts to the BPM) and a chorus/flanger which can crossmodulate.
It is a virtual analog, so it doesn't make use of samples and you can make your own sounds. It has a few minor drawbacks e.g. the envelope is limited, no LFO and doesn't respond to velocity, but overall it's a great machine (espacially when you're a beginner in analog gear). BTW you DON'T NEED any software for programming it.
When you buy this machine you can add a solid bass and a screaming lead to all your music( it does a pretty good distorted 303 too). Here in holland they cost about $425 and that's a fair price for this unit. Buy it, it won't disappoint you.
303bass