Some snorers swear by adjustable snoring mouthpieces while others prefer to stay away from them. So, is one better than the other? Not really. This is actually just a matter of opinion. I have found both options to be effective. Actually, I should say, I have found both varieties to live up to their claims, but that does not mean every adjustable mouthpiece will be effective.
On paper, ProSnore II looks like it will be a breeze to adjust. I can assure you that it's not. Near the back of the jawline on both sides you find hook-and-loop material. If you know anything about this material then you should know it is not easy to work with.
Lining up both sides is easier said than done. It is very hard to get the positioning right. Mine kept turning out crooked no matter how hard I tried.
When you finally do get everything lined up, you better hope it is on the right setting. Chances are good that it is not though. Most have to go through a trial-and-error phase, which means you will need to deal with the adjusting process several times.
Honestly, I don't know how long this device will last (probably not long compared to something like Zyppah). That hook-and-loop material is by no means heavy duty. I imagine it would break down and need to be replaced rather quickly.
Nearly all adjustable MADs require a break in phase. Do not try this mouthpiece (or any other adjustable one); if you expect to be snore-free the very first night. Don't begin using your mouthpiece on a week when your schedule is overloaded either. You can expect to get less sleep in the beginning while you go through this adjustment phase.
For more information on this anti-snoring mouthpiece check out my ProSnore II review.