In my home most of the celling fans are of usha because it is very trustworthy and all are fans are working well with no problem at all even after 2 years of installation .
Although I must admit that some of the older fans have got there speed reduced but after we have changed there condenser .they are all working well now with no issues at all.
Even I have a very old ( almost 15 years old ) sewing machine at my home and its still working .