Recently our school district purchased an Epson Brightlink 450Wi interactive projector. The install took about one hour and the device has proven to be very responsive. We are using an existing whiteboard as the background, and our initial setup had the image passing through an ELMO TT-02RX. The ELMO caused image resolution issues and presented a “shake” to the projection image. We separated the devices (laptop and ELMO) and plugged each separately into the projector. This solved the issue.
After a week of use we are quite pleased with the device. The main challenge I see is the problem of young children (K-1 0r 2) not being able to reach the top of the image. A stepping stool will suffice for now, but some sort of extender for the pen would be a better solution.
I know BoxLight has a similar device and an extended pen; so, that device may be one to try out. Overall, the Epson Brightlink 450Wi is a solid device that serves as a cost effective replacement for interactive whiteboard devices such as SMART Boards or Promethean Active Boards. At about half the cost and just as good, if not better responsiveness, the Epson Brightlink is a better value for cash strapped school districts. A longer pen solution would make it better.