A fantastic place! We've rented several villas across Thailand and in some other countries in the past and this definitely is one of the best!
The description and previous reviews are all very true, so not much to add really. The villa is beautiful, very private and has just everything you need for a great family vacation. Seaview is a great bonus, which you rarely get in Hua Hin area.
The pool is partly shaded throughout the day, so is always very refreshing. And the huge community pool, which is just 1 minute walk from the house, is very warm and has nice shallow areas, so the kids could stay there for hours (it gets very few other visitors, so, as one of the other reviewers put it, it's like your second private pool where you can be alone most of your time).
Sergey, the owner, was exceptionally friendly and helpful, providing us with loads of info on the area. We didn't get to meet him in person, but we were greeted by his neighbor Paul, who was also very welcoming and willing to answer all our questions. On arrival we found fresh fruit, soft drinks and snacks, plenty of drinking water, toiletries... You could just grab your swimwear and come, there's really everything you could think of!
The massage place 2 min drive from the villa is very good. Went there several times for oil massage and were never disappointed. The restaurant in the same building was closed at the time we were there, but the other nearest place - Jok's, which was recommended by Sergey and Paul and the other reviewers as well, is lovely: nice setting, good food (Thai and European - made the kids happy having their nuggets and french fries :) and good prices too.
Hua Hin and surroundings have so much to offer, you can spend day after day exploring this beautiful area and enjoying all sorts of activities! This villa is a great base, no matter how much excitement you've had during your day, you can come back here to relax in total peace and quiet. I'd say, if you intend to stay in Khao Tao area, look no further! We'll try to be back for sure!