Polyvision ENO board feedback

Hi there everyone - We are trying the ENO boards in 4 classrooms right now in or primary and elementary classrooms. I searched here for posts about the ENO but did not see much.

1) Does anyone have any experiences with the ENO in their school that they may share (good or bad)?
Would you recommend it over the Promethean or SMART?

2) What are your experiences with the RM easiteach software?
Are there other software packages besides the included RM Easiteach that you would recommend?

Please give your reasons. Thanks!! Lisa