Never expected a bad experience from costa coffee but had got one the very first time I had visited this cafe with my husband.
When we went in it was shocking to even see that no waiter or service boy approached and after sometime we literally had to call them and then they came. After that it took them ages to go ahead and serve the coffee which came almost after 30 minutes.
My husband found out in his coffee a small fly and immediately we complained and again they got another after sometime and even the temperature of the coffee was not that high and over all had a bad experience from every way.