Overall, the picture quality from the EX9200 Pro looked great in my testing. After some initial fiddling with the focus and adjusting screen size, the projector performed admirably. The settings default to Presentation Mode, which, as you'd expect, looked great when I threw documents onto the screen. Text was easy to read, with good contrast between the text and the background.
There are a few other picture modes you can switch to, including Cinema, sRGB, Blackboard, and Dynamic. However, outside of Presentation mode for documents, I found Cinema to look the best for most uses, and most users will probably stick with either of the two. That being said, video looked fairly crispy with good blacks and bright colors, so kicking back for a movie or two with the EX9200 Pro isn't out of the question.
Thanks to the powerful 3200 lumen bulb in the EX9200 Pro, finding a good environment to set up the projector shouldn't be too hard either. Of course, in a pitch black room, everything looked excellent, but even dim to somewhat bright rooms were workable with the bright bulb. The only potential catch would be viewing dark video in a bright room, but that goes without saying for the most part.
One qualm I have with the EX9200 Pro is with its sound options. The projector comes with a 2-watt mono speaker, which can definitely serve most basic needs. The speaker should be loud enough for small or medium sized rooms, but I ran into issues with sound breaking up a bit at middling volumes. For presentation purposes and short videos, the speaker should be alright. However, without any audio out ports, you're stuck with the on-board speaker, which is bad news for any extended viewing sessions.
Aside from having plenty of ports, including the ability to plug in a USB flash drive for quick access to files, the EX9200 Pro also features some pretty great wireless connectivity. Setting it up is a little tedious, involving the installation of an Epson app and fiddling with WiFi settings, but it everything works great once it's set up properly. Even better, in addition to pushing photos and documents from a mobile device or laptop to the projector, you can also use your device as a remote control.
It's great to see wireless connectivity built into the EX9200 Pro, especially considering a lot of competing projectors require additional accessories to get the same options. And as tedious as the process may be, Epson's included step-by-step instructions, along with a convenient QR-code based setup make what could be a frustrating procedure fairly easy.
Of course, if you'd prefer a plug-and-play wireless option with a bit more flexibility, using a Miracast dongle or Chromecast is always an option with the HDMI ports. This will allow you to push content from a number of apps using their native interface, with the added benefit that your phone can be used as a clicker for presentations.