The images are blurry and of low quality. I am not sure what they mean by HD, but it is not High Def. The images change within the tanks so quickly that all hope of a tranquil experience is lost to a jolting rough change of scene every few seconds. If picture quality and tranquility matter to you don’t buy this app.

I paid for this and it really wasn't what I expected. I wish I could have tested it before purchasing. The videos are nice and decent quality but the loops are short on some and the camera is moving around making the motion quite distracting for a background. I was hoping to have a long steady shot that would seemlessly flow without obvious loops. I have uninstalled this becasue it is WAY too large a file to keep on my Mac without using it. Now I just wish I could get my money back.

Another example of why you can't trust reviews (paradox noted)…I purchased this after seeing many positive 5-Star reviews talking about the great quality. The quality of many of the clips is quite poor, the videos that loop in some of the modules are quite short. Many of them are very uninteresting scenes and some of them are just unattractive. I don't know what standard others are using, I was disappointed.

wish i could get my money back, this was a waste of space and time… the samples show eight different videos, I only had 2 to select from, the third was broken and the rest didn't even show up.they need to open a trial period before purchasing or a 24 hour return