I can tell you one cumbersome issue with this roaster is that it is a heft (3.5KG) of a roaster to turn out the batch, as you have to lift up the roaster to pour out the batch and that can be a struggle for those users who have strength issues in their arms; it's easy to drop the unit if you're not careful!
To @chrish, design handles for the side of the unit to make it safer and easier to pick up!