There are a few bugs being worked on with the Qolsys IQ panel, but one of the best aspects of the panel, (to me, at least) is that patches and updates can be so easily applied. Qolsys also has almost monthly software updates planned, with another new one supposedly coming out before the new year to address a number of issues.
Considering that software bugs can be so easily patched on the IQ panel once diagnosed, I would find it very odd for that to be reason enough to plan a new panel so soon. For older traditional boards that may be understandable.
A couple serious current issues I am personally aware of:
GE model Repeaters causing issues with sensor signals.
New GE Smoke detector model with ~1-minute supervision pulse causing issues with sensor signals.