I have an opinion on Kyocera printers.
I have have looked after a fleet of a few dozen Kyocera FS2020's for ~15 years, quite a few of which racked up print counts literally in the millions; I think the highest got to ~2.5 million sheets. Fantastic printers, hugely rugged and the maintenance was a dream. They don't have any problems using compatible toners assuming that it's the right grade. Even if it's the wrong grade then it'll still print it in my experience, although this will have adverse effects on the drum cleaning blades and thus the drum service life if not adequately maintained. They'll also accept crap quality paper quite happily. (notably if somebody puts paper in at a 15 degree angle then it'll pull it in sideways, flatten it out and spit the sheet out of the top instead of jamming and crying for an engineer)
Kyocera has a "maintenance kit" which contains basically every moving part, all of which could be replaced on the 2020 with nothing more than opening a panel and replacing a unit, with the most difficult one being the fuser; which you had to poke two clips with a random key/screwdriver to detach the clips and remove it from the printer (a nice bit of userproofing; stopping the end user from accidentally damaging the fuser rollers)
The time taken to replace a dev unit, fuser or drum was less than the time taken to remove the part from the packaging materials. (They were very, very well packed against impact damage or contamination in transit)
On the basis of this rather positive experience and with the obvious age of the printers getting to the point of absurdity, combined with spare parts availability starting to become a problem (still available from Kyocera OEM, but they were obviously being made specially for us and then shipped from Asia...) I decided to pay that little bit more and upgrade to the Kyocera p3145, basically a straight upgrade to a more modern printer in the range.
All was well for a bit. The dev unit and drum are relatively painless to replace at about a hundred thousand sheets, but my god the fuser unit at about a quarter million sheets. You've got to basically totally disassemble the printer shell, then unscrew the fuser and pull it out and then disconnect some tiny delicate wires seemingly specifically designed to be easily damageable, thus writing off either the fuser unit or the entire printer and then reassemble the dammed thing again.
Suffice to say that the useful lifetime of these printers is effectively until the first fuser unit change. I'm going to be replacing the printers rather than repairing them at that point and after that experience it's not going to be with Kyocera kit.
But if your expecting to be printing less than a quarter million sheets over the printer lifetime then they are great.