Acid's awesome. Yeah, you can get crazy hallucinations but usually good crazy. Like the walls will start to breath and shit like that. It also tends to do what I can only describe as turning off your brain input filter. At least if you have enough. What do I mean? Take a look and listen to everything around you. Right now where I am there are clocks ticking, fans going, lots of different items with different colors, etc. I really only notice the computer in from of me, however. My brain filters out the other input. Turn that filter off and everything just comes flooding in and mixing together. Yipee yahooee. Now you're peaking :0

How much you trip really depends on the quality of what you got. I've taken two hits and not felt much and taken one hit a tripped my ass off.

As far as having a bad trip, unless you've got some underlying psychological issues I wouldn't worry about it. Also don't do it if you've just had a fight with your girlfriend, parents, etc or have just had some bad news. If your feeling bad dink some tequila, smoke a bowl, or do some coke. Don't do psychedelics!!