I did my EB, and I did my EF. I've had no problems with either. The EF has seen one summer with no probs, and the EB saw several. Its really good stuff - just follow the instructions.

I think I left mine for about 2 hours before putting it back on, but I don't think there was a need to.

As long as you are smoothing it on as you go, and not creating any stress on the stretched sections (like the sunvisor sections) it works great.

I replaced the roof lining in my EA on Saturday. I got a good condition one from an EA wreck for $20. I found the hardest part was taking off the a-pillar trims without breaking all the clips off. We did end up breaking a fair few, but the important thing is they still don't rattle and it looks a lot better.