San Miquel de Allende trip from Zihuatanejo

Has anyone taken the bus from Zihuatanejo to Celaya and then a bus/taxi from Celaya to San Miquel de Allende?
I don't want to drive.
Flying is an option but it seems like a lot of moving parts for one day.
I saw this bus trip into Celaya from Zihuatanejo -about 5 1/2 hrs -and then another hour from Celaya to SMA by taxi. Wondering if anyone has done it? Thanks!

This has been discussed a few times over the years. You might find some of the previous comments helpful.

Bus to San Miguel de Allende - midalake, 2018-06-30, 09:35
San Miguel de Allende - Parker, 2015-09-20, 16:17
Best way to get from Zihua to San Miguel de Allende - devney, 2013-12-14, 12:49