Hi Adam,
There is a control configuration system inbuilt in to the game, if you enter the options screen you will be able to configure the controlls however you want and this will save for your next play, also there is controller support if you are interested in that (though its quite simple at the moment). The dialog at the begining is a great addition and i can see your frustration with it playing each new play through I will work on something for future builds.
I need to update the tooltips that popup as these are confusing, i will be working on implimenting the inputs data with these so they change based on what has been configured. its V by the way to climb down ladders.
I hope you give it another go knowing this information and llok forward to hearing further feedback