TL;DR thin panelling makes it less sturdy and poor quality butterfly catches means the door panels don't close tight!
Judging from the photos this unit seems nice and sturdy but the wood panelling is thinner than you might think.
If you're gonna be moving this around a lot you're better off springing for the thicker panelling on the more expensive units, particularly the shock mounted kind with the 9mm plywood
Another point is that the catches and doors are not great quality also, the catches don't fasten the doors tight, they kind of wiggle on the frame a bit, no doubt if you're not careful you'll bend the thin aluminium frame that sits with the doors on the unit
One good point about this unit is the castors are very good quality, it moves around smoothly and with ease on flat surfaces and the brakes are good and strong
Overall I would say if you are going to get this unit then make sure it suits your needs, as in, if you need to move it around a lot, or put lots of heavy gear inside, or need to take the doors on/off regularly, then you should consider getting the more expensive and better built units