significantly steeper than any ‘trail centre’ ive visited, then to my mind a trail centre is XC and aston hill is DH
the red run which is part of the XC loop at aston is as steep and technical as the black dh on whites at afan or the final descent on climachx, its been so long since i went to CyB that i cant remember a comparison from there.
ive ridden back up at aston hill, but i usually only do it once per visit,
that said there is enough of the xc loop and the start of dh3 to the fireroad, the 4X* and the bombholes, to keep you amused for a while, without winding up right down the bottom
*must admit ive not been there this year so dont know how it is – rough as a badgers arsehole last time i visited!