I bought the keyboard stand (two tiers) and the iPad holder all at the same time in order to revive my keyboard stand set up in as neat and light a way as possible. The main concern for me is the lightness of the product, as I have found many 'professional' products to be too heavy.
However, this system is very light indeed so I am delighted with it. It has quite an unusual attachment method but once I had worked that out I realised that it will be straight forward to use in the future.
It looks very neat and has put an end to boom stand toppling over misery.