Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not the best tool for the job

I got it today. Its a real hassle to assemble, I was very persistent and managed to put it together in a concentrated effort. It actually may be impossible for some users to assemble.The rubber tubes providing hand support and hold the central wheels in place are very difficult to put on. Also the central wheels are a little shaky since there is nothing really to hold them in place and their base is not very wide. This is a very strange design choice. I have seen other products that worked much better.Other then that it seems to be working ok.