Wifi connectivity is not perfect all the time (there are 2 access points, but it's completely random which is working well, and it also depends on what room you're in to have good connectivity, and what devices you're using, we carried 2 iPhones and a laptop). On all balconies is good Wifi connectivity, but not in all rooms. When you have connectivity, the speed is very well.
The owner Mila is very nice and helpful. The appartment is perfect for visiting Bol, certainly with young children. There's free parking for your car (reasonably secured, not on the streetway). It's 10 minutes walking to the city center of Bol, and 20 minutes walking to Zlatni Rat beach.
We come back to Villa Mila if we ever go back to Bol, price/quality is certainly a 10.