I think this new toy eats way too much power... It's pretty slow, I connected it to CESU storage with adv batpack, supporting it's capacity to 600000+300000, it drains it in a blink...
Although it drains the power so quickly, the effect is slow. I am better off mining with the standard miner, I get far more stuff in less time. The new advanced miner is very expencive to build (since I like to play it in survival mode, with no cheating, I could experience it's costly price)
It may be better using MFSE or MFS with 4mils - 40 mils EU, but still, it should go way faster considerning the power it consumes...
Version 2.0.344
EDIT : Scratch that. It's only power hungry 'till it fills it's internal power storage... again, I don't know why so much power is stored inside it - but again - it's maybe better than recharging batteries every few seonds, once it started digging.
EDIT 2:
Also, I don't know if it's just me, or machine overvoltage blow up is off, I got a reactor DIRECTLY connected to CESU, feeding it with 380 EU/t and that CESU alone, feeds a bunch of machines. They never run out of their internal reserve, all working simultaneously. Thermal centrifuge, two macerators, two metal formers, extractor, canning machine, bottling machine, compressor, induction furnaces... All feeding from a single CESU... I know that E-Net is work in progres, just right now, it's pretty messed up.