Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Poor Quality

This is the third Delphi product I have purchased for use with XM SkyFi2 system. Each Delphi product had to be returned because of problems; sound card problem, antenna connection would not maintain contact with signal, etc. The sound was very good when the systems were working. The purpose of buying the portable units was to use the SkyFi2 outside of the home. I gave up on the portable systems and now have the home kit for SkyFi2 connection to my home stereo system. So far so good. I have had it hooked-up and working one week.