Compared to the cells at some prisons I visited while in college (for coursework, not to stay : P) it's pretty fuckin cushy. Like, really cushy. Helluva lot better than an auditorium of stacked bunkbeds or even smaller cells with fewer "amenities". I mean, he's even got a bit of a window for some natural sunlight.
But yes, it speaks to how absolutely garbage the US prison system is and how the whole thing is designed purely to inflict further suffering rather than make any credible attempt at rehabilitation in an effort to reduce recidivism and promote overall public safety.