Not Tanzania, but I've experienced what my guide called the "African back-massage" of hours bouncing along corrugated roads into Serengeti National Park. I wouldn't mind flying next time, plus I think it'd be beautiful.
Would be great to have thoughts / feedback from the HN Community. Also happy to chat in general if you're planning a safari trip :) Email is in my profile.
I've grown up in Tanzania and partially based in Kenya past few years and partially in California, I'm intimately familiar with the safari scene there. Spoiler - it's incredible.