We now live in a rented property having in lived in our own (mortgaged) homes for 35+ years. We are not allowed to decorate it, so have to live with Magnolia walls in every room. We have been put off putting up many pictures or wall fittings because you have to fill in the holes afterwards and then repaint the whole wall they are on (in the same coloured magnolia), because spot painting looks awful. If the landlord can complain about any damage to fixtures and fittings when you come to leave, you can loose a large part of, or even all of your deposit when it comes to you leaving. The landlord can change their mind about wanting to rent out their property, so you always have the stress of not feeling completely safe in your home. Most landlords will either themselves, or have their agents, visit you twice a year to check the property. If one of the appliances, services or fabric of the property need maintenance or fixing, you are dependant on your landlord for how quickly that is done - our landlady has to have several estimates from trades people before she has any work done, she usually goes for the cheapest, so it can take quite a long time to get something fixed, and it is often not of particularly good standard (some landlords are much better than this, and some much worse). Most private landlords will not allow pets.
The only benefit that I can think of, and why we are in rented accommodation, is that I became disabled so needed a bungalow, and even though we were selling a 3 bedroom detached house, we could not afford to buy a 2 bedroom bungalow, but we could (only just) afford to rent one.