I tried IE rack rentals and they are few things that I didn't like:
* I Couldn't find any support at this moment on phone.
* There is no way to access the routers directly from internet (access through the console server can kill a lot of your time because if you make connection to more than few devices at the same time and switch between them sometimes u cannot restore the old session and u get message that this line is already in use - clear the line).
it's Hard to get used with it but it's not impossible.
* I tried the IE support form and they answered me the day after I had posted it
Something positive:
* It's grate despite of these disadvantages.
* The greatest training company ever.