Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Upgrade Horror

I've wasted a day and a half trying to upgrade from CS2 to CS3. The installation process was EXTREMELY slow (about 3hrs), then I get a dumb message that i have to un-install (which took 4hrs, literally). So I google for solutions and find that I have to run an CS3 Clean script. I do and hope for a working installation, but no such luck. Apparently there's lots of people that experience the same pain. What a crappy upgrade! And the worst thing is that there's no competition!