Spacious, clean, well-appointed. But there are things that need to be done.
1. The tripping lights – this is potentially dangerous, e.g. if someone is coming down the stairs, someone else turns on a light, the system trips and the whole place is plunged into darkness. You probably need to put in a transformer to have LEDs.
2. Water in top bathroom basin – sometimes there's hesitancy when you turn the tap on, then it suddenly spurts out, all over the floor, and soaks your clothes and shoes. We didn't find this particularly funny.
3. The blinds in the main top bedroom - they flap in the slightest breeze, and are astonishingly noisy. They are also very difficult to move up and down. They sag and get all crumpled. Why not replace them with the type of blind you have in the next door bedroom? Also their brackets are loose - two minutes with a screwdriver will solve this problem.
4. I strongly suggest you prepare proper, clear instructions for playing DVDs etc. I know you have left the "official" instructions, but only Tim Cook would know what they mean.
5. We get this again and again in holiday cottages - the wine glasses are too tall for the dishwasher, and the bowls are too deep, so they won't stand up like plates, they have to be laid flat taking up far too much space. This means that we set the dishwasher more frequently than should be necessary.
Wish you all the best. (We ran a holiday house for a number of years.)