I've been going at it solo since October.... how the building is laid out i would say is another big factor, how you set up ordering/reservations/time-slots, etc etc. and the "educational" part of the process to the customers about how your operation works is another big part i've found. It can be a daily pain in the ass for sure, and irregardless of all the planning, %$# happens..Last week my ice machine wasn't draining properly so i had to take it apart and clean it. The number of pizzas i was able to do was almost cut in half..
Making the pizzas is totally the easiest part of the day, even service is chill for me, it's the constant ready set go, 6/7 days a week..and just every guest talking about what i need to be doing, or hiring employees or blah blah blah, that gets old.
I don't do this to chase pennies, theres a long-term plan so i can justify the "Leaving Money on the Table" which i hear all day everyday, i also haven't paid myself since i struct the first nail building it. As long as the rent is paid, wife and kid have what they need, i don't need or want anything else.
You have to be very determined and have a belief in self to do it solo.