100% plan on coming back! There's great views to be had here and different trails to explore. We even saw a few deer on a nearby hill. If you're expecting something unpopular, this is not the trail for you. There was a good amount of hikers and bikers on the main trail with less and less as you go on. Parking is $3. Totally worth it!
One of our favorite hikes, my boyfriend and I love going up to the flag pole in the morning before work. The view is awesome and there's sage growing everywhere. It's a little steep at times and because of the recent rain, it's a little rocky and parts of the trail get narrow, but it's not an issue if you are a regular hiker. Bring sunscreen if you burn easily and plenty of water, especially on hot days. Shade is limited.
Just an FYI for anyone who doesn't follow the Trabuco Ranger District closure page. This road is now limited to residents only due to several severe mud slides yesterday that took the road out and buried several cars. According to the TRS (Trabuco ranger station) this road will be closed until further notice and access to Holy Jim/ Horsethief Canyon will be limited to North Main Divide road (which is also closed for the winter) so as of now, Holy Jim is inaccessible from either direction.