I have the A.R.E. "Z Series" on my 2013. I've used A.R.E. exclusively for the last twenty years after having quality problems and support issues with Leer in the mid-90's. I have not had any quality or paint issues with A.R.E. and have been very happy with them... Their downside is their dealer network is a bit thin, at least here in Georgia, and they do cost a bit more...but they are worth it to me. As far as side windows I prefer the crank out rear quarters versus the sliders but I have used both styles. My Z Series has frame less glass with crank outs and it looks really sharp! Sliders have a bad habit of collecting dust and crud in the tracks if you aren't careful...and making it known at the worst time. But sliders may offer more airflow if you need a lot of fresh air. Just flush out the tracks periodically... If it is available make sure you order the front window with the option that allows it to fold inward to clean it and your trucks rear window! This is my first cap with that little jewel and it is well worth the money! Pet Screen protectors are also well worth the money if you carry dogs. If you have any specific questions let me know and I'll try and answer them.