Nothing . Been there, not impressed, won't go again .. It was dirty with very poor maintenance
Housekeeping should clean in between visitors. One assumes this is industry standard
Actually i heard that there are some people who have grudges against the place and so they leave the rooms a mess to get the place to have lower views. So really the dirty part was awful citizenship but if maintenance is not responsive that IS a problem.
Get an answer from Sunchaser Vacation Villas at Riverside staff and past guests.