When my dad died, my mum felt insecure in the house on her own and as her mobility was impaired by her osteoporosis she downsized to a really nice flat in sheltered accommodation right opposite the sea. She was very happy there, lovely house manager, lots of social occasions arranged, lunches out, visiting gardens, theatre trips that sort of thing. In fact she also had similar sort of social functions through her church so it made me glad that she had a full diary during the last few years of her life.
The downside of a lot of these developments is they can have very greedy managing agents. The company that managed my mum's block were called Peverel and I have since read a lot about them in the financial press, and not in a good way. If I remember rightly my mum's annual charges were probably a couple of thousand per annum, this wasn't really a problem for her because at that time in her life she was awash with funds from downsizing. I do think it would put some people off though when taking this sort of flat on. For the same reason it can make them hard to sell on and this type of property could become a liability to whoever inherits it because the charges will still have to me met until it's sold. I know because I was paying them for about a year. To be fair I can see where the money went, permanent house manager on site, gardeners once a week, lift maintenance, the common areas were always immaculate, all the carpeting was replaced in the communal lounge area and hallways when my mum was resident. If any machine packed up in the communal laundry they were replaced immediately. However, I have read about groups of savvy residents in similar types of sheltered accommodation who got rid of the appointed agentsl and managed the block themselves, thus saving themselves thousands. When I eventually sold my mother's flat after she had had died Peverel charged a stonking £1,000 just to transfer some documents, my solicitor pointed this out to me and he felt that it was a complete rip off, but it was in the small print, so our hands were tied.
Good luck with whatever you decide to do alanthetiler, on the whole it was a positive experience for my mother. I would echo previous poster, jayjones sentiments though, there's a hell of a difference between a very mobile sixty something and a not very mobile eighty something, so I wouldn't opt for sheltered accommodation if you are fairly active.