A good one will go down pretty fast, once you learn the pattern. Each manufacturer is a bit different. BUt like the other guys said cutting them in takes time.
What I do to save time is leave out the last course of the circle then run my pattern (with the pavers Im using outside the circle) as close to it as I can. Then measure out your radius of the final circle and scribe it onto the pavers. Then I use my cut off saw and scribe the pencil line pull the pavers out one by one and cut them and then replace them. After that just pop in your final circle course.
I find the keeps the cut angle consistent throughout the whole border rather than have the cuts all have slightly different angles (which depending on your labor you may have)
ps. 8's are easy start doing some 16's lol
