The in-laws live in a very small town a few miles away from Egremont, DH grew up there.
It is beautiful, no doubt about that. I love to visit and there are always new places to explore. There are some fabulous pubs for eating in. And it is crazy cheap to buy property there especially just outside the actual physical lake-y bit. But it is isolated. It takes forever for us to get there for visits - by the time we've reached the Lake District we still have another 60-90 minutes to go, a large proportion of that along very very twisty turny single lane roads. And worse - whenever you want to go somewhere it takes forever to get there along the same old twisty-turny road. Any journey seems to be at least 30-60 minutes (got to get to Cockermouth and then usually Keswick too) unless you're popping in to the local "shops" in Whitehaven etc. Public transport is crap, naturally.
The towns also feel quite run down and depressed in my opinion - lots of people are employed locally at Sellafield and that is no longer the employer it once was (imagine a mining town losing its mine) and there are not many (any!) other jobs, I'm amazed you found one! Most young people try and escape as soon as possible.. DH tells me (and I'm not entirely sure it's tongue in cheek) that his schoolfriends either left the area or ended up in jail or on benefits. If you have DC, expect them to leave as soon as they can, and not be anywhere near you as adults.
DH says it is pretty insular too - he grew up there, his dad is from the south of England, his mum and her family a local but he says he didn't have much of an accent (it's all relative, ha ha, to me he does!) so people would ask him where he was from regularly. They left him be when he said he was a local.
His mum is retired now, can't drive and has big mobility issues and is extremely lonely with nothing to do and nobody really to see, despite it being her home town and then some.
It is lovely though physically, and I feel very lucky that we get to visit regularly. I would not want to live there however, and I say that as somebody who grew up in a rural area by the sea myself, albeit the other end of the country.. I love the countryside and the coast, it's in my blood - but it is just too depressing and isolated up there. As cheap and beautiful as it is!