I just wanted to have a keyboard thats not cluttered with tons of superfluous features so I use simple keyboard configured in a way that it only types and nothing else. I even turned off spellcheck and autocomplete, though that is mostly due to me having bad experiences some years back.
There are four acts in total, although the last two are more rushed than the first two. Act two is way bigger than one and I would recommend looking at a level map if you feel stuck somewhere, since fights with higher leveled enemies are mostly just impossible.