I've just bought one of these soldering irons. I don't know why I didn't do it ages ago! It's been useful since I've been taking things apart again, for example here is an infrared receiver that I've just removed from an old set-top box:
The new iron made a nice job of it, I set the temperature to a reasonably high level and heated the pins at the back of the board whilst tugging the otherside with a pair of pliers. Each pin came away very easily. I've only had it for a day, but so far it has been fantastic. Plus it's great to have an iron without a power cable, it's much less fiddly.