We had a great stay in Pernilla's house. Communication in advance was perfect (and being an English teacher she has excellent English even by the standards of Swedes' English speaking, which was universally very good when we travelled there!). She has a very useful home manual with all the information you need about the house, and lots of tips about the local area. We also had a bit of friendly communication whilst we were swapping.
Her house was ideal for our stay with two teenagers; clean and modern, and nicely decorated. The garden is overlooked at the back by lovely trees and vegetation. It's in a quiet estate where cars are parked a short distance from the houses, making it feel calm and safe, and also conveniently a short drive from several supermarkets. In the local area of Borås, my daughters loved swimming in two different lakes nearby, where there are official swimming places. We also had a couple of lovely walks into the nearby nature reserve - you can either just set off from the front door, or drive 10 mins and take a different trail. We also visited the Textile Museum in Borås which was a well-set out, modern and interesting.
We took up one of Pernilla's recommendations for one of the best places for fika (Swedish custom of socialising with coffee and a sweet treat) by going to nearby Alingsås, a pretty town with several great cafes, and dutifully trying four kinds of sticky bun.
It's about 45 mins to drive to Gothenburg - we spent a whole day exploring the beautiful archipelago, which you can do on the regular car and foot /cycle ferries that connect the islands (which are all free!). We also spent a day in Gothenburg itself, where there is plenty to do - and being a major port, lots of seafood to eat. We took advantage of being near Denmark to do an overnight trip to Copenhagen as well - easily do-able.
I would happily recommend a stay at Pernilla's house.