We purchased a model 900C-400 hydraulic test center. The unit is exceptional, and I believe the manner in which Power Test has incorporated the software testing abilities into the machine is superb. The technician that was sent to commission the dyno and train our employees on operation and software integration was extremely knowledgeable and efficient in achieving the start-up goals. Power Test has been quick to help us in getting additional attachments, etc as well. The sales team is very helpful in directing us in regards to what units, attachments, kits, etc that will work best for our testing needs. All in all this is a great machine and a well orientated company.