Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Mac Mini

Great machine very weak Hard Drive. The core duo and Super Combo dvd burner is great. But since the hard drive is so slow 5200rpm, the average is 7200rpm and the faster machines are 15000rpm it is a slow machine in comparsion. I bought it with out knowing and wondered why my machine was crashing all the time... I also added ram 512 isn't very much ram.PROBLEM NUMBER 1...I upgraded the hard dive to a 7200rpm and it runs great. I fixed that problem no more crashing.PROBLEM NUMBER 2...There are constant operating system updates, you know update itunes, updated safari, updated firmware.Will now my Super Combo Disc burner no longer works and it turns out it is a common problem other people are having. I don't know if apple is going to release an update to fix the problem.DON'T BUY A MINI, if you want a mac I suggest a imac, you'll get a great monitor, faster hard drive and more ram, it's worth the extra money!