Summary: I have an older OKI I use at home that has been fantastic. I've maybe replaced the toner 4 times in 5 years. This one gobbles up toner like crazy, and the cartridges are more expensive than those for any other laser we have owned. I chose an OKI for our office because of the beautiful print quality that my older OKI gets. It gets 2 stars for print quality, but definitely not worth it.
Summary: if I could return this I would. I connect it to my Mac and from the minute I turned it on the first time I get an error message saying Photo Conductor needs to be replaced. Seems to also go through toner fast. Only printed a couple hundred pages so far so still finding out. The print quality is great and it duplexes very nicely.
Summary: Caution: OKI support noted that new drivers for MAC OSX (Mountain Lion) will not be available for +4 months after release of new OSX 10.8. No ability to print. Error message not related to problem of Driver compatibility. Good news was the OKI support was aware of the problem. Bad news was the answer was to use to printer that you had to revert back to prior OSX version.
Pros: non-mac printing was excellent quality.
Cons: max osx drivers late instructions did not show network port (hidden)