I just have bought a 2008 WR250R, 2500 km in perfect condition.
i usually ride a 600xlr Honda(1983) or a 600LC4 KTM(1991) in soft enduro way, but they become to be "vintage" bikes and more for collection. I was looking for a recent and lighter bike, efficient enough to ride everywhere without fighting with power or spend too much time in maintenance.
The WR250R is the good answer for me. I tried it for a 50 kms trip in small tracks up and down hills , on earth and rock : what a pleasant bike ! it is very efficient, comfortable and enough powered for all situations even with a 100 kg pilot. I will only harden the suspensions
the only complaint I have : it is a small bike for a 2 metres guy, standing on it. sit on is OK. I will look for higher handlebar. If some one has do this, I am interested by (I will lok in the forum).