We bought our first ever TT in February. We had no experience with them at all. I think our PDI was pretty good but as someone else said it was a complete information overload. When we were able to go camping 6 weeks later we couldn't remember a lot of the little details. We had a lot of manuals so we used them for most of the things we needed and I used the search function here a lot to find some other information and appreciate that others take the time to help out those of us who are new to camping.
Sometimes for me too it is better to have someone who has been there, done that tell me in plain English how to do something rather than try to decipher something written in a manual and apply it.