+Qiren YQR To add about DX, they have a good refund/return policy but the only drawback is snail mail due to free-shipping. However, I had a compliant when 1 item was missing and another with boxing packaging damage but product was in tack - they completely refunded my money back with no questions asked. The boxing was probably open/damage by customs, Canadians worry about everything especially items coming from China.
The durability is good. I'm still using it from the time I've bought it. I have two, a orange and pink that I keep at work and a extra for home...working like a charm