I purchased this stand since it afforded me the opportunity to suspend a typical side-address condenser microphone in the upside-down position - which of course looks extremely professional to prospective clients.
There are a number of very practical advantages though:
The heavy base makes it extremely stable, whilst having a much smaller footprint than comparable 'tripod' stands, so it is practical for the space-constrained typical home studio.
The long boom arm has a very effective locking mechanism and the counterweight renders it even more stable. And on the end is a further short boom arm which allows you the flexibility to position a microphone in pretty much any position you wish.
On a practical note, since this allows you to suspend a microphone in the 'upside-down' position, you can place another microphone 'the right way up' just below and adjacent to the first mic - with barely a 2 or 3 mm gap. On a separate conventional mic stand of course...!
From one vocal 'take' you can therefore record two separate vocal tracks with the two different microphones (perhaps a tube and an FET mic). And then at mixing time, pick which track / mic sounds better for the individual singer / song...
I suppose the only disadvantage is that it is heavy - but that is precisely why I bought it. And the base does have rather nice wheels...
I intend to have an awful lot of fun with this one...!