$2.33 Wireless Charger. Is It Any Good?

Is a cheap $2.33 wireless charger from eBay or overseas any good? How does it compare to a more expensive, similar version? We will look at this in this video eBay search for cheap wireless chargers: http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&_sop=15&_nkw=wireless+qi+charger&rt=nc&LH_BIN=1 Link to the charger in this video: http://www.ebay.com/itm/Qi-Wireless-Power-Pad-Charger-for-iPhone-6-6-plus-Samsung-Galaxy-S5-Note4-Nexus-/131528098316?var=&hash=item1e9faf820c:m:m_p-d2V5HclJXeJjrLB5HrA