This is Bryn Poeth Annexe. It's in Bethel on Anglesey, which is a small village inland.
It's a little annex that sleeps two. It's got one bedroom and a shower room. It's a 3 Star place, so it's comfortable and clean but it's not a fancy hotel. It's compact, which means it suits a couple or a solo traveller best. There's a small kitchenette area to make breakfast or a simple meal.
You've got your own patio area out the front. It's a quiet spot, good for sitting out with a coffee. Parking is right there.
For getting out, you're well placed. The coast is about five miles away. Newborough Beach is a good one, with the forest and Llanddwyn Island. The National Trust page for Newborough has the details for the dunes and the island.
Beaumaris with its castle is a 20 minute drive. Holyhead and South Stack lighthouse are about half an hour. If you want to go over to the mainland, Snowdonia is easily reachable, maybe 40 minutes to the Ogwen Valley.
In terms of what's here, you've got TV, WiFi, bedding and towels are included. There's no mention of pets being allowed, so I'd assume not. The listing says there are other properties nearby that can be booked together.
Useful links for planning: Visit Anglesey and National Trust Wales.