you have to show the better. Being specific and measurable to date and time is also a good idea.
You will want to document those things that are in need of repair, damaged, not working, etc and share that with the landlord. Make sure it is in writing so there is a paper trail. Who knows, you can even ask the landlord to correct those items!
Like the saying goes, a picture is worth a thousand words. Photographs do a great job in documenting the situation. Make sure you have a record of providing it in case you need to refer to that at a later date.