Treste is a great tool for rapid prototyping projects. I use it in loads of my projects. There are a couple of things that kind of tick me off though; Trestle resources tend to become large files in the app/admin folder due to the way they are written. I find it hard to read/maintain them as a big file, so I split them up into smaller files and created a generator to ensure that they always follow a standard. Another pet peeve is the menu handling. Handling menu itmes in each resource quickly becomes a nightmare. Ordering them requires a lot of manual work. To keep things simpler, inspired by the work from the crowd at WinterCMS, I created a menu.yml file that is used to manage the menu. I also created a helper that simplifies the placing of the menu.