Fanaway Ceiling Fan White With Retractable Blades - Guess what? The title of the article is only out and out misleading. The only actual "con" in regards to your ceiling fan is what it takes to get one properly installed. Ceiling fans may be hard to install for the inexperienced do it yourselfer. In some instances, where the ceiling fan would be to be set up, you'll need to run an electrical line to the region. Hiring a capable, bonded and licensed electrician will more than likely save you much grief in the long term unless you're skillful at achieving this type of thing.
There's also the minor "con" that entails the problem of periodic maintenance. Correctly installed, a ceiling fan provides many, many years of agreeable cooling and cost-savings on your heating bill (assuming you've got a fan which allows you to reverse the blade direction).
On occasion, ceiling fans get out of balance and need small alterations. The most frequent offenders are loose screws that attach the blades to the motor casing, blades that aren't at exactly the same angle (pitch) as the remaining blades and also a blade or blades that weigh slightly more than the others. Make sure that all of the screws are tight, without going into great detail. When they're not tightening the ones that run the fan and have come loose. Your issue continues to be solved, when the wobbling has ceased.
If not, use a yardstick or other straight bit of wood and place it (together with the fan stopped) vertically at the outer edge of one of the blades. Rotate the blades by hand to make sure that the stick touches. If one or more do not, only (and gently) bend the blade(s) so that their pitch matches the others and repeat the process until you're satisfied that each blade has the same pitch. Turn the fan on again and see if you've solved the problem.