We took this train from Yerraguntla to GTL. Overall a good train as far as railfanning is concerned. Book a berth in S1 and you are a couple of coaches behind the ALCO, which will not disappoint you, with its performance. In between halts the ALOC belts out around 103 to 105 Kmph (As per GPS). DO the journey in the monsoon, it will be better.