I did a 4 camera rig with studio lighting and an automated turntable that took 2 minutes to spin, results varied depending on how good the model was, any movement really produced massive amounts of noise and errors, some people who managed to stand perfectly still gave us very good results. We used software to read all the images from the cameras together and used flash trigger IR remotes to trigger all the cameras simulteantously, the most important factor to me is getting very very still life models, good lighting, low iso and decent camera positioning. We literally only had 1 day to do it, half a day for setup half a day to shoot, biggest drawback was our camera positioning in some shoots, we did not have enough time to do much tests and our rushing left us with some noise and errors and the movement as mentioned before.
good luck :-)