Currently the homepage shows the status of monitor with downs first, then troubles and then rest of the monitors, which is perfect.
However, it will be great if there is an additional column (in addition to Monitor name, performance and last polled columns) indicating the reason of the monitor down/trouble status e.g. memory utilisation more than 90% or disk space less than 5 % etc, whatever it may be. To find out why a monitor is in trouble I have to click on that monitor and then figure out, which could have easy been displayed in the home screen as well. You are only using 3 columns, and there are plenty of space for an additional column to display this vital information.