summary thread of all the tuners

Do we have a thread yet or an article written by one of our experienced members listing the pros and cons of each tuner and which one works best for the avalanche? I have an 07 ltz, and I am researching which one to buy, been looking for a thread like that but all the information seems to be scattered.

I'm not sure about a thread but I can tell you either get a personalized tune for YOUR truck specifically by Black Bear Performance or Nelson or similar.  Another option from what I hear is you can learn how HP Tuners works and tune your own truck.  

Honestly, just go the first route I mentioned.  I'm in the process of a black bear tune myself.