The guest house is very peaceful and was larger than we expected. Well stocked kitchen (pots, pans, oil, butter, vinegar, fish sauce, utensils, etc.) and a fully functional stove was definitely very useful since there isn't much around - don't kid yourself you're going here for Volcanoes National Park, not great restaurants.
Be aware though, since it is solar powered we were only able to turn on the inverter (providing electricity from the solar panel) for about 20min a day. That means 20minutes for WiFi or charging devices. It probably varies greatly based on the weather, but it wasn't particularly cloudy not rainy when we were there. That was a bit inconvenient when our camera batteries were all low, same for our laptops and phones when wanting to plan the upcoming days.
The check in/out process was super easy with self check in.
We had an issue with the septic tank being full that would not allow the toilet to flush and was bringing back up the pipes what had been flushed before our stay. As soon as we voiced the issue, Andy was super receptive and resolved the issue in an impressively prompt and communicative way. This simply meas that if you have any issue, just bring it up and I'm sure something will be done about it.
The property is filled with flowers and trees (guava, passionfruit, etc.) and a variety of fruits and fresh eggs were provided to us - more than we could ever go through.