There are lots of designs. they are not as durable as other high end machines, and sometimes you end up in a black hole. I bumped my head lots of times when exiting, but thats just a minor complaint i have about their design.
Okay, So you travel to your nearest library and then talk with a assistant called ''bob''
You tell hem you've been send by the name: ''Poopyhead'' he will direct you to this dark room. If you are there there should be a special book in one of the bookcases. If you take that book out of the shelf. The bookcase will move. Then you'll be in a darker room, and you will find a Light switch on the right. If the lights are turned on you should be able to find a big *** time travel machine sitting in the room.
Write your destination in time on a wall, then run into the wall as fast as you can, and you'll hopefully ve transported into a coma! Dumbass
Your garage.