ok well i've had one of those for many years....well they aren't complicated if you know how to use them....downside is they only will roll one size....you just gotta put in the ammount you want and how much you put in will affect how tight it is rolled.....you can test it by pushing at the bottom where it's rolled...it coems out in paper at the same tightness...make sure you put it in even....on to how to use them...there will be two wheels.....one will be fixed into place and one will move up and down and kinda out you'll know what i'm talking about when you see it.....you put your stuff in first get it all nice and round and as tight as you want..then take a paper sticky side up and towards you and feed it in as you are rolling it (make sure it's not the sticky down or away from you...) when it gets almost all the way into the machine just lick the paper and contine rolling for a turn or two....then just pop it out and there you got a joint.....