Great! ...but don't expect too much,
We've owned the previous model CLP-500 for about two and a half years with very few problems before replacing it and the same experience has/is applied to both printers.
Sometimes they suffer paper jam after pick up from the main tray, which is a pain if your in a rush and for us that's always - but then that's proven to be the case with all our printers and let's face it, at some point they all jam. Fact. (anyway, how easy does it need to be to remove a bit of paper? The job's done in 10 seconds!)
The various cover catches we found to be a little flimsy, I managed to break the main cover catches after about 8 weeks. A niggle sure, but sorted with a bit of Bluetack - hey, no expense spared here.
The biggest problem we experienced is when the printer decided it didn't like the main paper feed tray and ditched the sensor to tell it how full. Manual feed from there on in, but still printing fine. We didn't get much joy from Samsung themselves - actually pretty poor on service sorry to say - but we had great support from our hardware supplier and restored faith. Another niggle is the amount of toner that can float around inside the printer itself, often getting onto the imaging unit resulting in poor prints. We resolved this by stripping out the components and hoovering the inside every second month.
No further issues to date.
So why have I said "Great - if you don't expect too much" ? Here's the rub. If we need quality and quick output we use an HP; Why? Well for a start the Samsung is slow for colour printing (it generally gets left to chuck out a couple of hundred prints and pick them up later...) and to be frank it hasn't got the finest print quality going either. There are better out there... and smaller!
It has a Big footprint 510(w) x 470(d) x 405(h) not withstanding the need to access any of three sides at any given time; the paper tray to the front, manual paper tray right along with access to clear jams and finally access to toner cartridges and internal gubbins on the left (here you also find Power switch, Network/usb panel etc) It weighs in at a hefty 32kg and for the environmentally minded it'll hit you for 450w of power in operation, 30w in sleep mode.
We're into year 4 now between the pair of them so from our perspective - they're great - just don't expect too much.