Install with caution. This app was a huge headache to uninstall. Broke my theme, injects lots of code, no backups done by install. Developer's website has no support contact info. Poor experience overall.

*Edit*: This review was while the app had just launched and I've moved it to 5 stars. It works great! The team reached out to me and got it working for my premium theme and I'm quite pleased with their engagement, understanding, and enthusiasm. Very very pleased with this and I'm impressed with how this simple idea works so well. Definitely recommend this if you want a super-easy mechanism to offer secret collections to your VIPs.

Even when I had trouble initially, the app was very gentle to my theme and didn't mess up anything on install/uninstall. But now everything is working great!

My original review for reference:
Really wanted this to work, but did nothing with my theme at all. Doesn't look like it even tried to install. Didn't show me anything but manual collections to hide and then didn't hide anything, etc.

I imagine if you have an easy/simple theme then it would work okay to do its thing, but though it could generate links that took you to the collection, it didn't do anything to hide the product/collection from search/etc without its theme changes.

2 stars because it didn't destroy my store on uninstall -- but otherwise I would have done 1 star because it literally didn't do what it said it would.

Only leaving a review because it had none, otherwise I would just assume it's not intended.