Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Okay...but buggy

I tried playing CIV 4 for the first time last night. I also got very frustrated with the bugs in the systems. You had best save you games frequently before it crashes. IT WILL CRASH. It crashed on me after an hour of playing no save. I had before playing added the latest civ patch too (v 52). The new format takes some getting used it. I like some new game modes: automation of worker upgrades, and some other features that make it much simplier. BUT, it cane be frustrating compared to CIV 3 for looking in on cities and unit actions and moving across the screen. I like it but its real buggy.