As a UK expat my 2 pence worth ( maybe less at 7-11 ! ).
Come to HK, you will never ever regret it. It is similar to if you transplanted a " perfect utopian dream version " of London into your beloved Bristol and moved the thermostat up to a reasonable level. Easy access countryside areas - just like Brizol. Seaside - just like WSM or those small sandy beaches you love down the coast. Lots of village life in the New Territories areas with country parks, cycling and hiking. There are many get together's with Geo members. However no chocolate box villages like you are used to going out to for Sunday lunch. If your into fresh sea produce then your home is here with delightful small islands to explore and have memorable eating experiences.
BUT YOUR IN HK -- so experience the difference.
Food - no giant sheds serving everything you need, but if you like to " do lunch " at Ikea ( Fishponds ) then they are here for your happiness. Quality of food is excellent. I am a great fan of Jusco ( Japanese Brand ) where you can get everything you need at maybe the lowest prices anywhere. They have fresh veg and fresh meat selections better than anything you can see in UK. OK maybe not in volume, but in choice, from every world market. They have a good range of registered organic produce.
Bread and Milk ( Staples ) - If your going to live in a Gweilo area then you will never put up with the supposed " fresh taste " of the UK sheds. Here bread is normally bought on a daily basis and will blow your mind in quality. Sliced bread is supplied in slices of 4 or 8 !! Milk you have in the normal ranges. They just have different descriptions to suit the local market. Cheapest in the supermarkets - except the City Super in TST where its massively overpriced because the rent there is huge.
If you like cake. Welcome to the taste capital of the world !!
Otherwise its , eat out a lot if you want. With cheap prices, unless you choose to go to the flagship restaurants in Central or Wanchai ( 2nd tier ). For a young couple without children its a playground you cannot resist. Think of any food you ever wanted and its here, somewhere. In fact think of anything and its here somewhere.
Even for us oldies its a place very close to our hearts and you could reasonably expect, never, to go back again but travel on to other parts of Asia and into the Pacific. OK July and August are hot and humid but we have air con EVERYWHERE. Buses, Taxi and Metro train systems are a JOY in quality and price. You wonder why public transport is so crap where you are and why you have to spend so much running a car.
People measure quality of life in a million ways - If you want to wake up happy. Never constantly watch the weather report for what to wear that day. Never have to have cold and flu remedies piled up in the bathroom cabinet. NEVER - want to eat a ready meal again. Then this is your place.
Finally if you want a bunch of friends that don't just come from down your street / in your pub then welcome to gatherings of people to make friends with, that come from every culture and every country. Where people look at you as someone they want to know, not look at you as " Yuom don't live roun' 'ere - do 'um ".
Brizol colonised the world - keep up the tradition.