This harness would be an excellent choice for those who desire a certain aesthetic with their strap-on play. It also is highly adjustable, having four straps (two for the legs, two for the waist), and when it's just out of the box the straps have a lot of length to them, meaning it can be adjusted to fit a wide range of sizes. As other reviews have said, it's best to fit it before its debut, as it's a bit awkward to adjust at first, but once there, it's easy enough to slip out of, leaving the leg straps where they need to be. I recommend cutting the excess length off the straps if there's a lot of it, and burning the ends, so they don't get in the way, which I had to do (My waist is around 26").

As it comes with 3 O-rings, it has a good amount of variety in dildos it can accomodate, and additional O-rings can be purcased and should fit easily, as those are held by four adjustable straps with snaps. This makes it good for users of various experience levels.

Due to the material, I would advise against using it in water.

The harness is made of a velvet material, which, on one hand, means it doesn't take getting wet over well, and care should be taken when cleaning it, if needed. On the other, this makes the harness quite soft and comfortable against the skin, and it looks amazing. The adjustable portions are nylon, which handles moisture better, and stays pretty well at the selected sizing. Getting that right is essential, as I've heard the nylon can be a bit abrasive if it's too tight, but I've not had that problem.

My impression so far has been that the harness is well made, and pretty stable. As previously mentioned, it's highly adjustable via nylon straps, and can fit a wide range of sizes. The straps, which are similar to the adjustment straps on a backpack, also hold their place well.
The harness comes with 3 rubber O-rings in different sizes, and these are held in place by nylon straps with snaps, which are also adjustable, making it compatible with a decently wide range of toys. That said, for larger, weightier toys, it's been suggested to purchase metal O-rings for better support than you get with the rubber ones.
The open-crotch design is also nice, as it allows access, if desired, and for me, makes it much more comfortable and allows for me to don matching undies, should the mood strike me (it usually does). It also means it's easier for me to wear under clothes as a surprise for my partner, be it to use, or simply because it's beautiful to look at.
A big part of why I personally chose this harness was because of the suspender loops, which allow for garter straps to be attached, so it can hold up stockings, which was a big deal for me (as I love wearing stockings), and it holds them up pretty darn well, which I'm glad for, as I love how it looks when paired with stockings.
With all that going for it, a major drawback is the placement of the vibrator's pocket. This isn't an issue for me, personally, as I don't like direct stimulation anyway, but for many it may cause issues, and it is a bit difficult to insert/remove bullets from the pocket.

It fits really nicely, snug against the body. The straps are a bit long, and smaller people may need to cut off the excess and burn the ends. I like that I can easily wear it under clothes for a nice surprise for my partner. I imagine, based on the straps' lengths, this harness can fit a range of body sizes, too.

It worked well so far, though I've not used it for major penetration yet, so I can't say how it holds against the force of that. But, it holds my dick in a good position, and it feels sturdy and firm during what I have worn it for. Securing toys is usually fairly easy, but I like a tight fit on my body, so sometimes it loosens up when I swap out rings, which can be a bit annoying, but no big deal at the end of the day.

The harness is relatively easy to care for, but I'd recommend washing it on gentle, or hand washing it if it's necessary, because of the materials it's made of. I've not gotten it dirty enough to warrant cleaning, as I find it easier to avoid dirtying velvet-like materials than it is to wash them, but it says it's washable, so there is that. Storage is really easy, though, as it doesn't have any special needs for storing, and it's easily folded.