I'm not a fan, and not just the site but also of the idiot who designed a roundabout on the highway that if you are heading back to town you either have to drive the wrong way for a long time or you do the smart Zoe thing and slowly drive against traffic on the shoulder to reach that roundabout and go the correct way - something you learn in Thailand. You'll know when you see it!
For one most stuff up here is in rubbles and I can't say it's put back together quite well either. Second, Mithras temple is off limits so you don't even get to see what is apparently the best part. It's all free to visit but surely doesn't excite anyone if you passed through Turkey seeing better places which you undoubtedly did.
It makes for a decent hike around the hill and the few billboards give some idea why it's important to see but it just doesn't cut it.