"Is APAP really "better" than CPAP?"
I guess if you are referring to “APAP therapy” vs “CPAP therapy” ... each person is different -- some do better with straight CPAP while others do better with APAP. The only way to know is to try both types of therapy and see what works for you. However if you only have a straight CPAP machine, you will never know if APAP therapy is better for you will you?
If you are referring to “APAP machine” vs “CPAP machine” ... the answer is quite obvious to me. As I said before, an APAP machine can be set to work in CPAP mode but CPAP machine cannot work as an APAP. If you already know that you and APAP do not work well together, then I suppose a CPAP machine is better for you ... otherwise an APAP machine is the best choice.
Accuracy of titration? ...
You need only to read the threads and posts by Dr. Karkow to realize that "accurate" titration is something that even most sleep labs are not capable of doing without specially trained staff and doctors using bi-level machines (and also requires several titration iterations to get it right). Accurate titration is a relative thing … unless you go and get treated by someone like Dr. Karkow, you are likely to do just as well or better with an APAP machine and monitoring software (plus a little help from our forum members) than your typical local sleep center IMO. Most sleep centers and their staff are not up to the level of expertise to do an accurate titration any better than a well informed OSA patient.
So if you do not want to be bothered with informing yourself about your condition or treatment and you have complete trust in your healthcare providers, then just get yourself what ever machine they give you and hope for the best.