Theres nothing whatsoever wrong with it as a 'CHEAP' acrylic gloss varnish, keyword, Cheap! which is precisely what the old stuff isn't anymore.
I have a bottle of old formula almost full and a bottle of the new, they both work the same yet people still pay silly money for the 'old formula'
All I use mine for now however is canopy dipping (and precoating if not in a hurry), for
decals on military models, (on civilian they're getting a gloss paint before gloss clear so no need)
I use Xtracrylics varnish otherwise, which, once thinned with water works out about the same price as the 'ebay old formula price', is more predictable for spraying and is dry in 15 min flat, ready for oil washes and
decals and dries to a tough finish too.
The whole point of the old Klear was simply that its a watery acrylic varnish which was dirt cheap, (couple of quid a bottle), last ages.
For those wanting to try it, the new stuff, though it's perfumed and looks opaque rather than clear, does exactly the same and is about £3.50 a bottle from pretty much any supermarket AND you get 750ml rather than the old 500ml!
Steve, you'd be as well off selling off your stash while it's fetching silly money, buy more kits with the proceeds.