Do it! It's amazing.
I was at a party last night where half of the guests had "retired" to London to enjoy the city lifestyle. There is so much going on, not just museums, galleries, theatre, restaurants etc but so many more classes, lectures, community (public not communal) gardens, volunteering, sports clubs etc than in smaller towns.
I would disagree about the lack of community, I think there is a far greater sense of community where I live in Central London than anywhere I have lived before. Local shops know their regulars, pubs have "locals", we have lots of communal garden events, community events, residents' association events eg garden parties, open air theatre, community trick or treat/carols/fireworks, street parties. It's easy to meet people at classes and activities.
It is noisier but you tune it out pretty quickly. I'm fairly sure rubbish collection doesn't start before 8am but you can check the schedule for each street. Deliveries can be an issue if you are nearly commercial premises, sirens if you are on a main route to a hospital/near a fire station, boy racers in sports cars, late night drunks etc, however, the back streets are surprisingly quiet.
I don't think shopping is an issue in any of the areas you have mentioned. They all have big high street supermarkets. There is always online shopping. You can get most things delivered within an hour from Deliveroo (Sainsburys, Waitrose, Co op) or the supermarket 1 hour on demand services (Co op, Sainsburys, Tesco) or Amazon Fresh (Morrisons, Booths, Wholefoods Market). The big advantage is there are so many delis and high quality independent shops. I love the fact that there are 2 cheesemongers, a specialist butcher, multiple Lebanese, Greek, Italian, Asian, Argentinian, Spanish and Russian delis, chocolatiers, patisseries, gelaterias all in walking distance. Or that I can get a takeway delivered from hundreds of restaurants, including Michelin starred places. There are no big Aldi or Lidl supermarkets in Central London though, just a small Lidl on Tottenham Court Road. The nearest Aldi is Little Venice or Camden.
One disadvantage (or an advantage) is it isn't easy to host Christmas or other big family gatherings if your family need to stay.
I couldn't live anywhere that doesn't have a balcony or communal garden though, preferably both. I'm looking forward to a glass of wine on my balcony listening to the Eagles play in Hyde Park tonight. Although I can imagine living near a concert venue would be many people's idea of hell, I rather like getting to listen to live music for free.