Summary: I bought a used one and so far so good. Considering the size and what you get out of it, it is a great deal. I needed a small projector for the bedroom since my wife did not want anything on the wall. Considering that it is a 720p resolution, I have no complaints about it, I only wish it has more menu settings to control the color quality of the picture.
Summary: I am on the road a lot visiting people in their offices or with small groups. I live by Powerpoint. Before the Optima PK320 Pico Pocket Projector, I was carrying a small laptop, a lightweight projector, a screen, and all the cords needed to power stuff and hook it together. I reduced my weight significantly by getting an iPod Touch and putting my presentations on it, but I was still burdened by cords, projector, etc. Enter the Pico Pocket Projector.
Summary: Love most everything about it! Need to get the remote for it as my fingers are a bit fat so I often fumble through the menus and they only stay up for about 10 seconds so I have to do it twice almost every time. Wish they would supply the mini HDMI cable (hard to find for cheap)!! Also would like to see keystone capability. Other then that, the picture is sharp, clear, and plenty bright, and it is amazing for it's size.