HP's LaserJet Pro M451dn is a lesson in inoffensive product design. Its white front and top panel integrate nicely with the black base and sides, with a few curves thrown in just to soften things up.

I bought two of these printers for work, having been a fan of HP lasers for the last 25 years. They don't fail to impress - fast and quiet, easy to set up, support AirPrint for the office iPads, excellent print quality, and look good! Toner cartridges super easy to swap out, no downside so far!

Prints color images a lot clearer then I had expected. I have the printer setup as a network printer and the installation was pretty straight forward for me, just set the IP I wanted the printer to use on the printer before attaching to the network and everything fell into place.

This is the fifth Laserjet Pro 400 that I have purchased for my office. Performance and print quality are excellent. I have been very satisfied with this particular printer. Easy to set up right out of the box. I would highly recommend this printer to anyone.

I was a little concerned since this was an open box, but it turned out that it had only printed 5 pages, and I couldn't resist the $275 price. Judging by the paper settings, I'm guessing the previous owner had a problem with printing envelopes.

Excellent colour rendition for graphics

Had a little alignment issue (blurry colour lines) at first, but doing a calibration fixed it; It's bigger than my prev; Samsung ML2851; Prints a bit slow for duplex (compared to my B&W Samsung laser)

If you print in any sort of volume, the ongoing costs for any model in the M451 product line will hurt you eventually - especially if you print lots of colour. Alternatives in this price range include the Dell 2150cdn and Brother HL-4570CDW; the latter's high-yield supplies are much less expensive...

It's a competent colour laser, but due to high print costs, HP's sluggish M451dn doesn't exactly set the heart pounding