Yes it is a good product. I applied back in January and has worked well, kept the props and sterngear pretty clean. Just a wipe over or a run will remove most marine life.
I was away from my boat for about 3months during the summer and got back to find everything total incrusted. However wearing gloves I reached down a pulled them off, the marine life could not get a good grip.
The down side is you must take time to rub down and apply, but worth it. Don't go for the clear one as you need to rub down and will show the marks (learn't the hard way), grey is good. Also only good for Aluminium not others I think - check.
Lastly note, when you have it craned out watch the guys who jet wash your stern gear - I didn't and have lost some of it off my props, but will reapply.
Please take note that there is a warning in the directions for the use and application of Veridian that it cannot be used on "bronze" It is interesting that none of the advertising has the warning.....but the directions do.... I found this out from a customer that I recommended it to.