Chapel Court Loft is on the top floor of an old converted church in Beaumaris. It's just for two people, one bedroom, one bathroom. It's got a 3 Star rating, so it's comfortable and clean.
You're up in the roof space, so the ceilings are angled with big beams. There are Velux windows that let in a lot of light. The bedroom is separate from the living area. There's a small kitchen area for making meals.
It's in the middle of the town, so you can walk to everything. Beaumaris Castle is a two minute walk. The high street has some good pubs and places to eat. The waterfront is nice for a stroll, you can see across to the mainland and Snowdonia.
There's a parking space for you on site, which is useful in Beaumaris. The WiFi works. Bedding and towels are included.
For things to do further out: you're on Anglesey, so the whole coast is accessible. The RSPB reserve at South Stack is about a 25 minute drive for cliff walks and seabirds. Menai Bridge is ten minutes away if you want to cross over to the mainland. The National Trust and Visit Wales sites have good information for planning trips.