Not a great deal there. OK for a gentle-ish pootle, but the singletrack sections are limited. Was OK on a cyclocross bike, but think it might be s little dull on MTB. Man made sections are not in great nick, and I suspect it's been a while since there was any maintenace.
It's a long way away too. Approx 30mins from Hawick (which is itself 45 mins from Peebles).
I used to really like Craik forest, haven't ridden there for years (over 10 now :oops:) but the SCU XC races used to use it and the courses were ace! (natural obviously). I also raced DH there a fair few times as it was also used as a main Scottish DH venue from around 1995-99.
Ah memories of grim muddy xc races from about 1994.
Did my first race there on a raleigh outlander. Nick Craig won the main event. After a few years biking I took some time off and made my come back at the Margam Park enduro in 2007 – Nick Craig still winning.
Craik Forest is grim, though that DH course was always good to watch.