Are these tunes actually better than Stratified or Dizzy? If so in what aspect?
It is really hard to say who is better than who. You are paying someone for their knowledge and experience, not just the toon. Without a really good technical understanding of the tuning process, it is hard to answer your question.
I have experienced tuning with both Mitch (@ CP-E at the time) and Alex (@ Stratified) and both were very intelligent, technical engineers. Mitch was super willing to help troubleshoot, explain the technical stuff, and just overall spend a lot of time with me on questions. Alex is smart but not as willing to answer questions with great detail. The turnaround time with Stratified was also unbearable IMO.
I have had conversations with Jason @ Dizzy and am impressed. I also appreciate the fact that he uses the forums to engage the community (not just facebook like some of the other guys). I may try tuning with him this Spring.
I know nothing about Randy other than what I have read. His customer base is mainly rally focused right now so I wanted to reach out since that is what I primarily use my car for. Hoping to learn more about his experience through email in the near future.
I think Adam @ TunePlus is doing a lot for the ford community as well. I think he is the best at marketing on Facebook so he is a staple for tuning services. I had an incident with him with a part I purchased that left a really bad taste in my mouth so I cannot speak to his tuning.
In the end, you need to come up with your own determination on who is best based on what is important to you. I value reliability most so I ask a lot of questions about what safety systems are left in place. The Ford ECU uses quite a few safety systems to ensure the engine doesn't get destroyed. Not all tuners leave these systems in place.
All of the above is specifically regarding custom tunes at large power levels (>250WHP w/ aftermarket turbo). If you have a bolt on car, a flash tune from any reputable tuner mentioned on this forum should be safe enough.