Ordering underwear online is usually something I don't bother with. If I can't see it in person, I often feel wary about potentially wearing it around all day! Also, it happens often that many popular brands just don't have thongs or g-strings that fit me well! No fun.

These, however, are amazing. I picked up one in a size Large because it was on sale at the time, and I thought these looked cute. Luckily, the large fit me perfectly, it was comfortable and just as cute as I thought it would be! I've picked this up in every color.

Packaging

These come in a very flat, fairly sturdy cardboard envelope with the model on the front. Inside is that plastic package you can see to the right, with the g-string packed over a piece of cardboard.
I like the packaging, as it's fairly minimal and really doesn't take up more space than necessary. The package is not exactly discreet, but it's not all that bad either.

Quality
These seem to be of great quality, and I don't have any complaints to make. They're all stitched well, nothing is falling apart or wonky looking. They all have a (fairly small) liner in the crotch.. everything is in order! I'm sure they'll wear out eventually, but I don't see any abnormally fast aging happening with these.

Care
I just treat these like all of my other frilly underthings- toss them in the wash in a lingerie bag, and dry on air only. No problems! You may also hand wash and hang these to dry.

Fit
The size Large fits me perfectly. My hip measurement is 38" and I usually wear a size 7/large in underwear. There's a bit of room to spare for me, but I wouldn't push it too far or you could end up with an uncomfortable g-string that cuts in! But for those within, perhaps, 3" of my hip measurement, a Large should fit really well.

Comfort
In general, these are very comfortable. When worn under jeans, though... no thanks! I wore these under a pair of jeans one of the first time I wore them, and the mesh is JUST thin enough, and just barely scratchy enough that the combination of the denim and the mesh rubbing against my sensitive parts was really uncomfortable! I would strongly advise against wearing these with jeans, but with pants of a much softer material, or with a dress or skirt, you'll be fine. These breathe fairly well and the mesh doesn't irritate as long as it's not pressed up against you by something else for a long time. I wear these with skirts mostly, especially since they're small and sexy and help me to feel sexy! These will also leave you with no panty lines at all, as they're so small, skimpy and clingy. Love!
There is a tag inside them, similar to many other g-strings, which is mildly annoying. As with all my underwear, I cut these tags off and ripped out the remnants of the fabric, leaving them all tag free and super comfortable!

And here's a picture of all of them together for reference. The colors here are pretty accurate to what you'll get.