@Amy2092
Our observations are that guests notice the comfort of the beds, styling of the house (tasteful artwork & bed coverings, etc) conveniences such as providing everything they need such as dishwasher tabs, cleaning liquids, washing supplies, etc.
...and the simplicity of operation e.g., light switches easy to find... Appliances simple and easy to use... Stuff like that.
Also, we have a rack of basic cooking things. Spices, sauces, etc. And coffee and tea. They don't have to remember to buy it at the supermarket, which they'll likely forget.
With respect to dinnerware, quality is always better, but you need not spend a fortune, just make sure it isn't super cheapo. They'll notice that.
But on dinnerware, most important is to provide lots of it. The reason for this is that people on holiday don't want to have to clean dishes every time they eat. They'd rather just get more plates and silverware out of the cupboard, put the used stuff in the dishwasher and turn it on when it's full. Like we all do.
We comfortably accommodate 8 pax. We have enough dinnerware for 16 or more. Pl6s lots of serving bowls and serving plates, we try to keep the pots and pans as new as possible, and we supply recloseable plastic containers for the leftovers. We get a lot of positive comments about this.
Just think about what you would need/want if you lived there (and keep it very very clean!), and you'll no doubt have happy guests. And happy guests lead to glowing reviews, which leaves you less vulnerable to price competition, and generally attracts a better quality of guest.