Nearly got one earlier this year from a friend but went smaller and got a border terrier.
Talking dog with Labrador breeder friend and having met their dogs I can say without prejudice that a gundog line of Labrador dogs is probably one of the best dog breeds you can get for all kinds of households (except perhaps very small houses and flats).
Puppy walkers and later on doggy daycare for your two days a week leaving them. Factor in £15 per day for that. Worth it because you'll probably get the benefit of their experience because they'll carry out basic training as well. Well it's in their interest because it's easier to walk trained dogs in public and they'll be walking several at once.
Our friend says if you get a female breed one litter because it'll calm her down. If pedigree you'll get your costs back if you get a few puppies. After that it's your choice but spay if not breeding as there's a condition females get if not bred from but still intact. Males, well your choice but getting him done should help to calm him down.
You'll probably know all that anyway. One thing you'll find, you'll probably get a dog that's better with men or women. It might bond more with one person in your household, well honestly it will. Have fun working out who as it's growing up. It will soon be clear to you.
Jeez! 4 months into dog ownership and I a dog person through and through! They'll do that to you. Everything is about the needs of the dog.
Caravanning? Hot summer evenings going out to restaurants? Can't leave fido in a hit caravan / car, let's get a takeout instead. Nice castle, let's pay to look around. What? No dogs? Really? Sod that! Let's go to the beach. No dogs between April and October? OK, let's go to a bar or cafe, no dogs except guide dogs. WTF! I thought the UK was a nation of animal lovers! Look I'm picking up its poop so don't give me that disgusted look. And so on and on and on.
Then positives are that you'll suddenly become a member of your local clique. Dog walker clique that is. The same dogs at the same time of day. You'll kind of become friends with some. Chatting away while your dogs are playing together. Getting pointers on the best places to go with your dog and other things from owners a little more experienced than you. Then there's end of day chill out with your dog resting its head on your lap. Of course being a Labrador it'll try getting onto your lap completely. A full grown lab isn't light.
All good stuff though.