I had one a couple years ago and it was bad. After a very short time (2k pages), the drum wears out and ruins every print job by covering the pages in dark streaks. Drums are supposed to last a lot longer than that.
After my HL-1440 started doing that, the toner was about out. It was going to cost as much to replace the toner and drum as it would to buy another laser printer, so we purchased an HP 1012.
The problem will eventually occur on all 1440s from what I've heard.
The HP prints faster. If I hit print from upstairs and then run downstairs, the papers will done by the time I get to the printer. It starts printing almost instantly. The Brother HL-1440 took about 30 seconds to warm up, and that sucked.
I've had my HP 1012 for over 6k pages and it still prints like new. I just put in my 3rd toner cartridge a few weeks ago, so that's about 2.5-3K pages per cartridge. Plus, the toner is cheap. I paid $61 shipped from Newegg, translating to 2.0-2.4 cents per page.
You may have my HL-1440 if you want. It's in my attic. Pay shipping, and it's yours. You'll spend as much getting it to work as you would for a new printer though.