“First of all, don't worry about the drive.”
We had three cars and not a 4x4 between us! There are two concrete tracks with grass in between, so keep on those, keep in low gear, and you'll be fine.
The house is great for a family of eight, with plenty of space, a lovely situation and some nice walks and views all around. If you're energetic enough, you can even walk to the top of Moelygest! All the sights of Snowdonia and north west Wales are within easy reach as are the Ffestiniog & Welsh Highland Railways.
There are plenty of shopping facilities in nearby Porthmadog with a Tesco, Spar, Aldi and Lidl, so you won't go hungry! The nearest beach, Black Rock Sands, is at Morfa Bychan. This is a stretch of firm sand three miles long and as you can take the car onto the beach there's no need to carry all the beach stuff from a distant car park.
The house is a converted pig farm, so do watch out for the low beams and ceilings upstairs. You'll soon get used to ducking! There are one or two quirky features such as a window between the main bedroom and the dining room; it doesn't have a blind or a curtain, but we managed to block it up with a couple cushions. Another weird feature is the en suit to the main bedroom - it doesn't have a door! Again, we overcame this, and stood one of the suitcases where a door should be to indicate that it was occupied.
All in all a splendid holiday house which comes highly recommended.