Interesting. I used to like the IC2 miner, but I eventually migrated to quarries. The fact that they had to be moved so often, and how that made powering them reliably an issue, was part of the reason why.
However, it was not the only reason. The other reason came to me after I had built my factory on top of an area that I had previously stripped bare of resources with IC2 miners. To my horror, I discovered that this left an uncountable number of tiny hollows underground, which due to my presence in the general area started being filled with zombies. And they moaned, moaned, moaned. Zombies day and night, zombies sun and rain, zombies around the clock, moaning, moaning, moaning. I was never able to find all of the hollows - I'd have to quarry out the entire area below the factory and a large distance into the surrounding lands.
So that's what I do nowadays, I just quarry everything out and use a filler to close the holes with cobblestone.