Yes, we use one and have never had any problems with it.
At this time of year, I also put a wee fan heater in with them just in case, but that gets progressively turned down on the thermostat, and is off after a few days once I'm sure the chicks have got the hang of the electric hen.
More expensive to start with than a heat lamp, but that soon pays back in reduced electricity costs.
One thing to say - ours came with threaded rods to use as legs. These were absolutely useless, and I now hang the pad on a string, for easy adjustment.
HTH!