Several bad things about using cheap Chinese meters. Test leads are flimsy and send one of the leads having an intermittent break that could cause serious injury. Years ago I heard at my electrical supply house that a cheap corner cutting electrician was using a cheap Chinese VOM that was only good for 500 Volts AC. He was measuring 480 volts either at night or a weekend when three phase 480 volt service is over 500 volts. Meter blow up in his hand and he went to the hospital for burns and was lucky to only miss a day or two of work. A quality meter will easily last more then ten years.On the eevblog forums they have a section for multimeter reviews, and I think they even have a comparison list between many different models. You can read their forums without signing up for an account. The biggest problem with the really cheap meters with unknown brand names is that they don't meet the voltage standards they say they do. Many of the users on that forum say they'll happily use a $10 meter from China, as long as they're only measuring a few volts, but they won't trust it not to blow up when used at a higher voltage that is still within the stated specs on the meter, because the stated specifications are not true, for the very cheapest meters.