The Birthstones vibe is great value for the cost. It is a very quiet vibe with surprisingly strong vibrations. It's not really an insertable toy, but it's great for clitoral stimulation. It has two different settings, which although they are not that different (no different modes, and just a slight difference in intensity) are different enough to have an effect on the experience.
The vibrations are the most concentrated at the tip, near to where the motor is, and it's there where the most fun is.

The Birthstones vibe is hard plastic, so it's a safe toy and doesn't smell. It's definitely not an expensive looking or feeling toy. The gem at the end is especially cheap looking, but that doesn't affect the actual experience. The plastic slips around a lot when well lubricated and it's sometimes hard to keep it in the spot you want. There are no seams which is nice.

The shape is a typical clitoral vibrator shape, with the motor close to the tip. It's not very thick or long, so it definitely works best for external stimulation. With that, it does what it's meant to do. As it looks like a vibrator, it's not something I would carry around in a bag, but its small size makes it easy to hide if you have children or a room mate. I think that while beginners would probably find this a more novel experience, advanced users could definitely find fun here as well.

The vibe takes 1 AAA battery and lasts for a good while on it. The controls are just turning the bottom. It's easy to turn it on to the first and second setting, but I've found it difficult to turn it down from the second setting to the first setting. What generally ends up happening is that I accidentally turn it off instead of down which is not fun.
The vibrations are most concentrated towards the tip, but are pretty strong throughout the toy.
The Birthstones vibe is really quiet, you can't hear it past the noise in the shower, and if you have music on, not past the sheets or blankets.
I took it in the shower a few times and it performed quite well during the course of it. The O-ring held quite well and there were no issues.

The Birthstones vibe is easy to clean. A quick wipe-down does it, and once it has been cleaned, it doesn't tend to attract any dust or debris.
The packaging isn't suitable for storage, so I just store it with my other toys.

There were a couple of directions on the packaging, but not many. However, you don't really need many for this vibe. The packaging was see-through, so not something to give a gift in.