Right after logging into your account, you'll notice that this site is a part of a big network that has a handful of bonus sites. Unlike some places where you have to buy additional membership to see what those sites offer, you'll be able to look at the content from each one of the sites from the list. There are sites like Black4K, Old4K, Loan4K, and a couple more where you have a decent amount of bonus content if you don't find something on Sis.porn.
The site is still quite new, so you won't find that many scenes in their collection. There are currently 12 scenes, and from what I can see, there should be 3 new scenes every week. The updates were consistent so far, so I don't see a reason why that would change.
Every scene comes with a video and a photo set. Videos last between 20 and 30 minutes usually, so you'll be able to see plenty of action from the best angles. You won't have to worry about running into SD videos because all the videos are available in 4K, and a few lower resolutions if you want to choose those instead of the best one. Besides watching the scenes on the site, you can download them without paying extra.
Photo sets look just as good as the videos, and you can find 100+ pics for every scene. The best pictures look sharp and are available in 2003x3000 pixels. You can also download them for free in Zip files.
On the downside, it seems like there are no search features. All the videos are on the same page and you'll have to scroll until you find something that suits you. Luckily, there's no need for those features at the moment, but they will be quite useful once the collection gets bigger. The only thing you can do is sort the content by date, rating, and popularity.
Amount of content: 12 videos and photo sets
Update frequency: 3 times a week
Exclusive content: Yes
Max video resolution: 3840x2160
Video types: flash, wmv & mp4 & mpg;
Photo resolution: 2003x3000px
Available for mobile:Yes
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