I use it hardmode and like the things it brings, however I'm slowly getting to the point where its not fun.
It's an ic2 addon and it does very good at being that, larger power storage and generation, some advanced processing, I like all the industrial [name] machines, that's all good.
My problem is that he keeps adding more and more unnecessary machines (e.g. I now have to make copper ingots into copper plates before I can make a dense copper plate) instead of making the operation and usability, e.g. useful gui's and documentation, of his existing machines better. The gregtech computer cube gives info on the old fusion reactor in the new fusion reactor version.
Hell, I'm posting right now because I'm tabbed out waiting for energy flow circuits to craft in the new assembling machine that's really slow due to its myriad of dual component recipes is a nightmare to automate.
My fun meter is slipping.