How do they work? Always with a guide? Are they quality hunts?
The draw hunts are DIY, except for those that are listed by "assigned blind". That is where TPWD will take you to a stand, drop you off and pick up. On those hunts, they usually do a draw for the stands. The "by compartment" hunts, you get a certain pasture and can hunt anywhere inside that pasture. You take yourself to and from that pasture. These are the ones I like to hunt. I've been on probably around 20 drawn hunts. Out of all those, I can only remember one hunt where I didn't have a shot opportunity, so I can say they are well worth the money and time going. If you apply before the deadline and don't get drawn, you can show up as a stand-by and have a chance to hunt, IF, a drawn hunter didn't get the permit fee submitted. I suggest you read up on the regs since it has all been changed this year. I understand that all or some the hunts might not do any stand-by's this year.
Now, the "Texas Big Time Hunts", the ones that cost $10 to enter, I think most of these hunts are guided. Never been on any of these hunts and probably never will, since I don't enter on these hunts.