The riding qualities of 139 002 are similar to those Glaswow 812. They both find and amplify any imperfection in the track. The track at Stourbridge is old and uneven with fishplated joints, a couple of sharp curves and a large rail greaser so 139 002 rocks and sways at quite modest speeds but at least the wheels don't squeal. Otherwise 139 002 seems to be doing a good job and with a departure every 10 minutes mid-morning it is being quite intensively used. I was surprised at the open driving cab on a railway vehicle operating in an urban area and I wonder what the economics are as there was a crew of two.