I know i'm probably one of the few who ever used the old school Bay13 guides, but, one recommendation i have, is instead of having me click a category, have it where i can also click 'repairs' and it loads up a list view of everything like before(not same color scheme etc, just with all of them listed on 1 page would be nice within categories, don't need previews there imo ).
I personally like to go through and look at everything there, and to do that now requires quite a bit more effort...for me at least.
Otherwise cool...definitely will take getting used to but w/e.