Grey Garden is an entire house on Koh Phangan’s east coast, a part of the island that feels more off-the-beaten-path than practical. That will suit some travelers very well and frustrate others. If your priority is privacy and some distance from the main tourist circuit, this setup makes more sense than a standard hotel. On the other hand, this side of the island generally has lighter infrastructure, so nearby dining, shops, and transport options may be fewer than in the south or west. It’s the kind of stay that works best when you know you want a quieter base rather than easy access to everything.

For the Full Moon Party, Grey Garden is feasible rather than close. The listing puts Haad Rin at about 19 minutes by taxi, roughly 10 km away, so this is better for travelers planning a ride in and out than for anyone wanting to walk back from nightlife. In practice, it suits people who want to attend the party and return to a quieter area afterward. One note on reviews: the current 10/10 rating sounds great, but it comes from only 2 reviews, which is too small a sample to read as strong proof of consistent experience.