The MX812ST should not be mistaken for a normal projector, it is a lumen monster. Off the box it is labeled at 3500 lumens; however, it seems to carry much more. We have discovered that due to its short throw nature, the MX812ST is able to project extremely high levels of brightness onto the screen without having the brightness dissolving on longer throws. The projector comes with an array of useful connectivity, but mainly HDMI, D-Sub, LAN network, USB, RCA. Brilliant color mode is well defined as it brings a new layer, almost amplifying the colors concentration to get deeper and richer colors, which are great for image or video feeds. I personally found presentation mode as a better fit for all scenarios, even while watching videos as it was much brighter without diluting the images with white and gray. Cinema mode was less authentic, gave the display a matte look which made imagery look bland. The auto keystone is a very neat feature that a lot of projectors carry with them now adays, but considering that most of these business projectors will be mounted, auto keystone isn't a needed feature. However, in the case that you are presenting on table tops you will find auto keystone quite useful as it rearranges the angles of the display automatically + or – 30 degrees.