I have been going out in this area since I was a baby, riding dirt bikes since I was six and 4X4's for the last several years. Its great for everything. If you want, I can show you a place where you can catch 20+ feet of air on your bike (your truck too, if you want to bury it where it lands)!!
I think this area of the desert is better for bikes than Ocotillo. We used to go to Ocotillo sometimes when I was a kid. Truckhaven/Salton Sea area seems has more to offer.