If you want the perfect place to stay, away from the hustle and bustle of everyday life, in a lovely location, very well appointed and with a warm welcome from the owners, then Llety's Nest is going to be what you're looking for.
It is a bit tucked away (but to us, that was part of the attraction), but you'll get excellent directions and once you get there, the view is worth it.
It's a great base to see Mid- and North Wales from, with wonderful walks all around, whether low level strolls through woodland to waterfalls, or more challenging climbs around Cadair Idris.
I'd have to really nit-pick to find fault at all with the accommodation (and I have tried hard to find something to nit-pick about), but it had just about everything you could want from a home-from-home for the week.....and more (except a rice strainer, which Glenys very kindly lent us anyway!).
Very much hoping to visit there again before too long.