I am a IIT student from jaipur and many of my friends have attended bansal classes for their coaching but I would really recommend you to join any other coaching currently allen is the best. many of my friends who attended bansal classes said that the teacher there are not that great and some even says that pooja bansal made maths their weakest subject as she teaches very fast and only few students are able to catch up with that speed. so if you want to get a good rank in jee advance your are better off in joining any other coaching.