This your feedback is a clear demostration about the person you are. I will answer to you point by point:
1) "but what I didn’t know is that during my stay I will have no free access to use the rest of the area in that small flat because Vincenzo asked me not to be around when he was working at the living room (which he does all the time as he works from home)" IT IS CLEARLY MENTIONED IN THE LISTING THAT YOU CAN ACCESS ONLY TO THE KITCHEN, TO THE BATHROOM AND TO YOUR ROOM, LIVING ROOM AS THE REST OF THE HOUSE (65 SQM IS PRIVATE). I RENT THE ROOM, NOT THE WHOLE HOUSE AND IT IS MENTIONED. DESPITE THIS I TOLD YOU YOU CAN ACCESS IT WHENEVER I AM NOT HOME AS FOR WORK I OFTEN TRAVEL. IN A MONTH YOU HAVE BEEN I WAS OUT ALMOST 15DAYS. SO HERE DEMONSTRATED HOW YOU ARE FALSE.
2) "That living room is 80% of the flat’s common area so I had to eat meals in the small desk in the room with no ventilation because I couldn’t eat anywhere else" NOT MY FAULT IF YOU RENTED ONLY A ROOM AND NOT THE WHOLE HOUSE. DESPITE THIS I TOLD YOU YOU COULD EAT IN THE LIVING ROOM TABLE, AS AN EXCEPTION CONSIDERING YOUR LONG STAY. SO SECOND POINT YOU ARE FALSE.
3) "I spent a month living in between dirty dishes (sometimes we ran out of soap), dirty tables (sometimes we ran out of paper towels), a loud TV volume and awful smells all the time, sleeping in a small room with no window to the outside (the small window face the other room) and you can hear every single phonecall because the owner has no respect for a guest, not even at 4:00 AM". YOU AND I UNDERLINE "YOU" WERE LEAVING DIRTY DISHES I USED TO PUT EVERYTIME FOR YOU INTO THE WASHING MACHINE. DIRTY TABLES? DIDN'T YOU SAY YOU HAD JUST YOUR DESK? I CLEANED THE DINNER TABLE AFTER MY ARRIVAL BECAUSE YOU HAVE BEEN DIRTY ACCUSING ANOTHER PERSON. AND CONSIDERING HOW FALSE YOU ARE WITH THIS FEEDBACK I DO BELIEVE IT WAS YOU DIRTY. AS DIRTY AS THE TRASH YOU'VE NEVER THROWN AWAY, AS DIRTY AS THE AWFUL SCENT OF YOUR ROOM, AS DIRTY AS ALL YOUR CIGARETTES LEFT IN THE BALCONY ( YES MY HOUSE IS SO BIG THAT HAS ALSO A BIG BALCONY), AS DIRTY AS YOUR USED CLOTHES LEFT IN THE BALCONY OVER MY TOWELS. NOT EVEN 4 PM? AT THAT TIME I SLEEP!
3) "The breakfast was included in the description and I never received anything". THE ONLY POINT YOU ARE RIGHT. I EXPLAINED YOU I DIDN'T KNOW BREAKFAST WAS INCLUDED IN THE LISTING. WHY DID YOU TELL ME THIS JUST IN THE END? IF ONLY YOU COULD TELL ME IN THE BEGINNING FOR SURE I COULD PROVIDE IT! AND WHY YOU DIDN'T MENTION ALL THE THINGS NOT INCLUDED, NOT YOURS THAT YOU USED? OLIVE OIL, SALT, PAPERS, DOUBLE CLEANED SHEETS, HOUSEKEEPERS EVERY TWO WEEKS FOR FREE, TABS FOR THE WASHING MACHINE, TABS FOR THE DISH MACHINES. SO LET ME GUESS WITH 20€ PER NIGHT YOU WANT ME TO TAKE CARE OF YOUR TRASH, THE WHOLE HOUSE AT YOUR DISPOSAL, THE HOUSEKEEPER, TO USE MY PERSONAL ITEMS, ME TO BE SILENT BECAUSE ONLY YOU CAN MAKE PHONE CALLS. RIGHT?
4) "Vincenzo is not prepared to share his space with a guest" THANKS GOD I HAVE PLENTY, ONLY GOOD REVIEWS THAT DEMONSTRATE THAT IT'S LIKELY THE FALSE PERSON HERE IS ONLY YOU.
5) "I tried to talk with him about this issues, try to solve them together but Vincenzo only responded me with excuses". DESPITE THE DAY OF YOUR ARRIVAL I TOLD YOU TO REPORT ME WHATEVER ISSUE OR NEED SO I COULD EASILY SOLVE IT, YOU ONLY TALKED TO ME 3 DAYS BEFORE CHECK OUT (IN A MONTH YOU STAYED) ABOUT BREAKFAST. IN THE END WE AGREED EVERYTHING WAS OK AND TO LEAVE ANYWAY A GOOD REVIEW EACH OTHER. AS I AM AN ITALIAN AND MY WORD COUNTS I LEFT A GOOD REVIEW DESPITE YOU USED MY HOUSE AS A PIG, DESPITE I WAS COUNTING THE DAY FOR YOUR DEPARTURE. AND YOU KNOW WHAT? I DO NOT REGRET TO HAVE LEFT A GOOD REVIEW EVEN THOUGH I SAW YOU DIDN'T RESPECT OUR AGREEMENT. YOU KNOW WHY? BECAUSE I DIDN'T WANT TO FEEL LIKE YOUR FEELING NOW READING THESE WORDS. THE NOTHING.