I live in LA and have heard of both theaters for years - but have never been to either one.
The Tiki Theater would not be difficult to get to being in Hollywood - but that is where Fred Willard was busted for "indecent exposure" and much worse from everything I understand its main business is from crack addicts looking for air conditioning. Even the article says "The Tiki is empty when we arrive, but Smith nonetheless chooses to stand." - so the guy that did porn movies does not even want to sit in the seats in that theater!
The other theater, Studs, is supposed to be pretty good - clean and well run - primarily gay - but it is in West Hollywood which is a bitch to get to and would take 1 - 1.5 hours to get there. A few years ago I did try and go a couple of times - once hitting traffic so bad I gave up and another time seeing someone I knew from work on the street a couple of blocks away and chickening out. I have never heard of Studs having problems with the police which is nice - I often think for things like adult theaters and adult bookstores just the act of going inside should constitute consent to what you may or may not see happening.
The closest I ever got to a porn theater was a drive in just outside the city limits where I grew up. For years they would run a couple of family friendly films each year but made their money running porn. Always funny to see the brake lights blinking in a car then a few minutes later the car drive out - knowing they were done!