Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good, but poor quality

I had this air pump for about a year now. I had use it about 5 time since then. The unit is now useless... it will not air up my tires anymore. It will start, then make all the pump noise like it use to, but no increase in tire pressure. I had to use my old beatup walmart $10 12v air pump to finish it off. I had that pump for about 10yrs now, and it's still working today. The only reason why I bought this slime air compressor, because it had a pressure guage and light. If not for these features I would not have bought this crap. My mistake was assuming that this would last as long as my old compressor.. wrong! Do not waste your money on this junk. Not very reliable.