Sorry for the necro. How close is it to tripping on mushrooms or is it totally different?
Different experiences. Its hard to explain but shrooms are more of a body load experience.
The way each makes you think is also quite different. I used to get a very outward "connected" experience on LSD with everything (there is this weird thing where stuff looks like its breathing, it kind of expands and contracts and is my sure way tell of when acid is hitting me)
I have never really been a huge fan of either although one of the best times ive had was candy flipping (combining MDMA and LSD).
It is probably worth trying each at least once at reasonable dosages. You will be surprised at how controlled you actually are. The lumping of all drugs into a category of "will make you do crazy stuff and lose your mind" is grossly exaggerated. There are very few drugs if done at reasonable dosages would take away control mentally so far that you are dangerous or "crazy"
In saying that, like anything, if you are irresponsible you can get pretty wrecked. Just have a look at a guy gurning hard on pills so that he has chewed the inside of his lips so hard he cant eat for a few days and it shows the difference between an amazing experience and ruining it with stupidity