I know people living in a park home, its not a retirement park so there are families and older people, has a village sort of feel although its within commuting distance of city centre.
They have sky tv, phone, internet.
The next door neighbours bought a relativly decrepit unit and gutted it, reconfigured the layout- no need for planning permission , they also installed a multi fuel stove as well as new kitchen and shower room.
Many units are insulated now, some clad in upvc, some like wooden chalets, some still look like caravans. Although they still have wheels underneath the undersides are bricked in, many have had roofs added so they dont look like static caravans anymore.
Some are heated by electric panels, some by oil fired boilers, some by calor gas.
A lot depends on the park and its rules.
The park owners can no longer dictate that you sell through them but they do have the right to a percentage on any sales.
Most sales are done through the likes of gumtree and private ads. As its like buying or selling a car there is no stamp duty. It can be difficult to get a mortgage on a park home , some people take out personal loans.
Insurance can be tricky but there are specialised firms out there, as with everything it pays to shop around.
There are park home owners websites around, have a read at them