As it's basically US led, the resolution for the States is excellent for the key areas such as towns and cities - it's the same for most of the UK but, obviously, rural areas are not necessarily as detailed.
I also live in the North West and I can easily pick out my house and, in fact, work out roughly when the aerial photography took place based on property alterations and parked cars in the road and on driveways.
Google Earth is great for finding places that you have to go to and have never been to before. If I get job interviews or have to go somewhere I've never been, I can look it up on there and see the building I've got to go to, along with all the roads, buildings and landmarks that surround it. As I live in Birmingham, everywhere's covered in high definition, but if you go out into the country where it isn't high definition you can still see rivers and fields, it's just they're a bit blurry. If you post what town you live in, I'm sure someone will look it up and say if it's in high definition or not.