I dont think its worth riding there for most intermediates now.
The ladder drops have both gone as has all the fun intermediate shore. There are 3 main runs that are doable for intermediates: Dual Slalom, The Four Cross and the Mini down hill line. Although these are quite good I dont think they match the other alternatives. The mini DH is very short and not steep. The XC riding at Chicksands is also very limited.
The other runs such as the bull run and snake line have gaps and drops waaay out of range for intermediate riders.
Woburn Sands nearby has much better XC courses as well as more freeride lines and also has plenty of dirtjumps as well as a good pump track.
Aston Hill in Wendover is way way better in terms of its DH runs too(you will be best to go on a dry day though as the ground is chalky and slippy in the wet). The Aston runs are each about four (roughly) times as long as Chicksands mini DH and are far more techy and steep but there are also intermediate lines and an XC course. There is also a good 4x there.