I've been coming to Skiathos for many years and this is exactly the type of accommodation I enjoy. Easy, simple, clean, polite/helpful staff and just 3-5 minute walk from the beach (with easy access to the water taxi into town).
It's quiet but if you wanted a bar or tv for sports there are two locations less than 2 minutes away. I would also say the room was bigger than most standard studio rooms in Skiathos.
For reference, I'm 29 and stayed here with my partner in September and have been to the island for 25 years.
I would absolutely stay here again!