I bought this in January so i've had time to get use to it and I have to say it's by far the worst dishwasher i've ever had over the last 30yrs.
The top rack is reletively pointless and just takes up valuable space, it also restricts the space for the adjustable height middle rack which in turn affects the bottom rack (i actually disconnected and removed it from the runner to give me more usable height on the middle and bottom racks)
It's also very hit and miss with washing things clean especially mugs which you need to plan where your placing them to make sure they're over a jet on the washing arm (which doesn't seem to have many jets to start with).
All in All it's a poorly designed machine with mediocure to poor performance, with my old machine i could just stack it however i liked and it would wash 99% of the time spot on, this one i'm lucky if it washes 3/4 of what i put in it.
Do yourself a favour and don't buy this machine because like me you'll regret it.