With girls I dated, who were not paid, I preferred to hangout with them for at least a few hours, or have them stay the night, and enjoy each other's company and build a connection within our defined boundaries.
With SPs, I understand it's a job; a tough, stressful job, and most people don't "love" a job, a job is done for the money. They are strangers, as we are strangers to them, and most of them probably view their clients with disgust, resentment, and judgment, whether they will admit it or not. They also have their bad days just like any businesses where professional services are rendered.
But me, I don't care, I'm just in it to bust and move on. I'm not delusional to think these girls actually love me or think I'm a porn star in bed, and I don't have to impress them or pleasure them (although I am very selfless in bed in my personal life). I don't need much time to get my rocks off, so 30 minutes is the sweet spot for me.
That being said I'm a good client as I don't like to waste time so I book with as few messages as possible, confirm restrictions, confirm the price with no haggling or arguing (so tacky and tasteless to argue pricing), shower, show up on time, leave.