Mardi talu is great location at the far end of Saaremaa island but it will provide all you need for enjoying your stay. Especially if you are traveling with kids. Lots of space, playgrounds, tree house - that's for kids. BBQ area and common party house - that's for parents. Cosy and clean houses - that's for everyone. Saaremma is not big island so you will find Mardi talu close to most of places to enjoy there if you are traveling with car. You can also find few restaurants in 5-10km radius if needed.
Mart and all people there provided us with great hospitality and expirience, being helpful for every request we had.
If you are running you will find nice trails starting from Mardi talu towards see and forest. Running with no sign of people among natural nature in the morning is quite an expirience.
We've enjoyed our stay there. If you are with kids make sure you will take hike or with car to Kaatri pank (clearly marked). Stone beach fulled with fossils will keep you and kids busy for hours.