We just got back from 5 days staying at Jose y Lola's place and had a brilliant time. We were two families - so in total there were 4 adults, a 3 year old, 2 year old and a baby and this house was a dream for families (nothing that could be broken, everything easy to clean - making it hassle free with little ones). There are two bedrooms downstairs with fans, which were helpful for the heat (1 double bed and 1 with two singles). And another en-suite bedroom w/ double bed on the middle level, with its own lock and ocean views. The kitchen was well stocked with everything you could need, and there are lots of areas to hang out in the day / evening (the small pool downstairs, the bbq area on the middle level, or the loungy space on the roof with incredible views.
The house is really interesting - they have renovated & styled it beautifully, and ultimately this is a cool experience in a more unusual property. As other reviewers mention, there are parts of the house that are open - so you do walk through a small "indoor-outdoor" area to get to the bedrooms and the downstairs bathroom. We were there when it rained, and this was really not a problem for us at all (I actually enjoyed being able to look up and see the stars on my way to the bathroom at night!). Also, you can see in the pictures there are a lot of steps - what you can't see is the railing, making it safe for kids.
The location is really interesting. Son Serra de Marina is a small town that seems to be attracting more people & investment - and some great spots there already (loved our breakfast at Sol and the high end deli around the corner from there made one of the best sandwiches I've ever tasted!). But more importantly, you are a short drive from so many incredible parts of the island - so it's the perfect place to use as a launch pad, or to explore on foot.
The nearby beaches do attract surfers as you can get some good waves, and on calm days are great for swimming w/ little ones. But within a short drive you can access every type of beach (including coves which are very baby friendly).
Finally - the hosts were SO GOOD. So much communication, they sorted out things we needed and were really attentive. Thank you so much. Went above and beyond, and I can say that with confidence as I've stayed in my share of airbnbs!