We have remote controls on each of our fans, and they work great. All are much more than 7 years old, maybe newer ones are of dubious quality.
There really isnt much to it, most fans just have separate light and motor wiring, so one merely connects each to the specific switched hot off of the remote box, and then the remote box connects to the house wiring.
If one were to fail, Id just pull the fan down and replace, pretty darn easy for any fan at a reasonable height.
They are pretty cheap and readily available at any home store.