My savannah does. not. dig. She refuses to, so she has a pre-made hide made out of logs, and piled on top with dirt.
She is nearing 8 years old.
Her tank is a great fit, and she's happy to live in it.
She comes out often, and takes naps with me on the couch.
The only problem I have is the lid, which I haven't gotten a replacement for.
And yes, A savanna can break your finger. Call perfect pets and ask them all about it.
I don't know what that whole attack post was for, someone must have had a bad day.
My aquarium has the proper substrate for a savanna, and she doesn't 'spend that much time' she soaks like as often as any other monitor would, and poops in her water, like a lot of lizards and snakes just love to do.