Ive hunted Colorado several times, my first was a drop camp. That basically is a DIT hunt, other than we were packed in, and camp was provided. We found elk, had a good trip and learned a lot.
Next few trips were semi-guided, we hunted a ranch as well as national forest land. Sometimes with a guide, some on our own.
What I have learned is elk hunting is very much a DIY huntable animal. If you have camp gear, are comfortable navigating in wilderness areas, and like the freedom to do you own thing, go for it.
Keep in mind its big country, and you'll have to cover a lot of ground sometimes to find game. DIY hunts mean camp chores sometimes cut in to your hunting time. But the reward is, even if you dont kill anything, the enjoyment and satisfaction of doing it on your own cannot be beat.
Myt son and I are going fully DIY this year into a wilderness area, for the entire archery elk season. The overall adventure is what makes the trip. There are several websites with a ton of info on this type of hunting, gear recommendations etc.