Bought this as a second printer for a small home office. Main criteria were compactness, good (black and white) print quality, wireless connectivity and low running costs (compared to an inkjet).
1) Very good print quality, certainly on a par with some mid-range mono laser printers and much better than inkjets in the same price bracket.
2) Very fast initialisation and first print - typically less than 5 seconds. Compare that to the 60 seconds or more you can wait for an inkjet to run through it's cleaning cycle. Print speed of around 20 ppm is also pretty good.
3) Very compact and unobtrusive.
4) WiFi setup is very easy with the WPS feature, provided your router supports this. Unfortunately not so easy if you have to enter your WiFi passcode.
5) NFC (Near Field Communication) feature is quite handy, allowing you to print directly from an NFC-equipped mobile phone or tablet simply by placing the device on the NFC tag. On Android devices, you'll need to have the free Samsung Mobile Print app installed (if it's not already installed, the NFC feature helpfully takes you directly to the Google Play store to install it). This app is actually very good, and a lot less fiddly or limited than some other mobile printing apps I've tried.
6) Eco Driver feature is actually quite handy and more than just a gimmick - particularly if you're printing from web sites etc. and don't necessarily need all the background graphics.
7) Installation procedure via supplied CD very straightforward. It automatically checks for the latest updates so don't bother downloading drivers from the Samsung web site.
1) For a mono laser printer, the running costs are actually quite high. The Samsung M2020 Toner Cartridge - Black
standard yield toner cartridge will set you back between £36 (best price on Amazon) and £55 (from Samsung store) and is supposed to last 1000 pages, representing a cost of between 3.6p and 5.5p a page - almost double the cost of some other budget mono lasers. Additionally, the genuine Samsung cartridges are relatively difficult to find - most high street stationery stores don't stock them. I wouldn't recommend using non-branded compatibles.
2) The fold-out input and output paper trays are made of very flimsy plastic. Wouldn't last 5 minutes in an office environment, but probably just about adequate for home use as long as you keep the toddlers away. The internal construction seems OK but obviously not built for heavy use.
3) It only supports 2.4GHz WiFi, so if your network is on 5GHz (as mine was) you'll need to reconfigure, or resort to USB cable.
4) No auto-duplex or 'straight-through' paper path, but that's hardly surprising in this price bracket.
5) Gets quite hot when printing large documents, but again that's not unusual for lasers.
6) It only comes with a 'starter' 500-page (i.e. half empty) toner cartridge in the box. Sadly common practice for budget printers but still deeply annoying.
6) The supplied 'quick start' guide sheets are so generic as to be virtually useless, so it's just as well the setup is fairly straightforward. There's no printed user manual supplied - just the PDF on the CD or downloadable from the website - but I personally don't mind that as a cost saving (and environmentally friendly) feature.
All in all, some nifty features and probably worth the asking price, but you get what you pay for.
PS if you want wireless features, remember to get the M2022W model rather than the basic M2022.