The best thing about this guesthouse is that it is located in a quiet alley, so that you can rest peacefully, but still be in comfortable walking distance of the village centre. In present day Thailand of overtourism, motorbikes and speedboats, silence is hard to find, but in Mushroom House you will feel like staying in the countryside.
Another great thing is the friendliness and service of the staff. You can feel that they real care about the property and their guests, and are ready to help with whatever problem you might have.
With a few minor improvements, like a bed side lamp, a toilet brush etc. this place would be 100% superb. But it its 95% superb as it is - you are guaranteed to enjoy your stay at this friendly resort.