Even for simple procedures like Botox or fillers, is a private clinic much better than a factory-style one?

For those of you who get Botox or simple procedures regularly, where do you all go? The factory-style places are definitely cheaper, but the wait times are long and the doctors change all the time, so I feel a bit uneasy about it.

I'm debating whether it's better to stick with a factory-style clinic to save money or to do some research and settle on a private clinic with a designated doctor! I'm curious to know how everyone else handles their appointments!