The Sennheiser HD 202s are a pair of studio headphones that are designed for monitoring during recording or for playback.  These aren't good enough headphones to mix on and I would only use them listening.  For this purpose, they definitely get the job done as they have a pretty full sound and sound quite good overall.  While they aren't the most comfortable headphones in the world, they do fit on your head well and will stay on easily.  They do have leather covers on the ear pieces that do make them feel good on the ears, but the piece that goes on the top of your head and connects the ear pieces together sometimes gets in the way.  The headphones also have a piece in the middle of the cable that you can wrap up the cable on, which can definitely come in handy if you don't want the wire dangling too much.  It has an 1/8 inch connector, making it seem like they are designed for more casual listening.  I definitely have trusted Sennheiser over the years to make high quality gear in the form of microphones and headphones and even though this is on the lower end of the spectrum for Sennheiser, they have still done a nice job of balancing quality and price.  The best part about these headphones is indeed the price as they are affordable for just about anyone on any budget.  I would recommend these headphones mostly for those looking for a good sounding set of headphones for general and casual listening purposes rather than for the recording studio, but they will definitely work for listening and playback in the studio as well.  Just don't expect them to be useful for anything beyond this as I don't believe that they are all that great for anything beyond playback and listening.