I recently acquired a Giant ORC2 from a friend and he left the pedals on there. The model number is that which is stated in the title. I googled said model number and found out that they are MTB pedals.

My question to you is, which shoes will work with these pedals? Only MTB pedals, or road shoes as well? Any suggestions on cheap compatible shoes? Also, is it worth upgrading these pedals on an entry level road bike?

Oh and how do these shoes fit size wise? I wear size 9.5-10(US) in a running shoe.

Any suggestions or help is greatly appreciated. Thanks