I don't know how big it is my opinion by the looks of it it's big enough, medium size purse not all that small at all I wouldn't say it is small it's pretty big
Yes it has a zipper on the inside that works fine all zippers work good no struggling with them, the purse is not torn in inside at all and just normal wear on the inside but can tell it's been used. Two small pockets is new one on the inside of bag & on the back of purse but the inside is used no ripes or tearing inside the purse at all.