I work with Iris every day, it's such great team to be part of! They are very proactive when something needs attention or is off-target from our expectations/requirements; they take feedback seriously &"t act surprised" which makes me feel valued as well (and that matters!). Nothing so far - but then again we're still new here! We use them during daily stand up meetings where their product manager helps us understand what goes into each release by presenting key features / requirements vs bugs fixed etc., this way there can never ever have been any surprise at how things turn out once deployed :).