I took in a 6yr old mill mama rescue in August who lived her entire life in a cage.
She doesn't have as much energy as my 2yr old Jack Russell Terrier (of course I doubt many would) but she loves to play, she loves affection, and she is curious about everything around her, and loves being outside where she can run.
She was seen by a cardiologist and opthamologist a few weeks after she came to live with me.
She has a level 2 heart murmur which doesnt require medication at this time, and her eyes were excellent.
As far as house training, there wasnt any.
I offered her to go out every few hrs for the first few weeks, with no accidents.
She still doesn't know how to tell me she wants out other than to sit quietly by the door and wait patiently until someone notices her.
Im glad you decided to get her.
I fell in love with mine as soon as I saw her. She is enjoying a much earned retirement living the life of a Queen..err I mean Cavalier
I think you will enjoy her
Congrats.