I slowly saw all of my Samsung-fan co-workers/partners transition to iPhones or atleast other Androids during my 2 year stay in Beijing. Ancedotal evidence at best but the quality of their phones and the software was subpar. I've had my Galaxy S2 for four years and only had to replace it last week. But their Samsung phones seemed extremely glitchy, would freeze at the most inappropriate times and have random battery issues.