The Booster is 100% silicone with a silky smooth non-porous texture, not a glossy "polished" texture sometimes found on other silicone toys. As I expect from any good silicone toy, it's devoid of any smell or taste. It's softer than it first appeared to me in the pictures; It has give when squeezed, and easily bends at the thinner portion. In other words, when holding one end the other end is free to wiggle around. The bullet housing of course is silver-colored plastic.
The shape is surprisingly effective. I was a bit concerned before receiving it, when I saw the diameter listed in the specifications as 1 3/8" wide. Upon receiving it I realized this diameter applies to the lower non-insertable portion. The upper inserted end doesn't appear to be more than 1" in diameter, while tapering down to about 5/8" at the thinnest region, which the sphincter rests on. With a suitable lube, such as Maximus, the tip slides in without much effort as long as you use a gentle in-and-out motion, which feels quite nice on its own given the shape!
The performance seems to overlap with the experience section, but I'll address the vibrations here. Given the softness of the toy, the vibrations aren't very strong at the tip of the inserted end but are very strong at the base. I wouldn't consider this a drawback though, as I don't think very much, if any, vibration is necessary on the prostate. You have to remember that even though it's often compared to a G-spot, it's really very different. The focus of the vibrations therefore reside on the balls and perineum which are much more responsive to vibration. I'd rank the 3 vibration strengths as 'strong', 'oh jeez too intense', and 'what in the world were they thinking?!'. Thus only the first vibration setting is really usable. In fact, having to cycle through the next two just to turn it off is somewhat annoying.
The vibrations aren't really louder than a typical small button-cell powered bullet, but the volume varies significantly based on factors such as whether you're pressing the bottom of the toy against yourself or another object like a chair seat.
The Booster is just as easy to take care of as any other 100% silicone toy. Of course don't use a silicone-based lube with it though. I use it with Maximus lube, and can't imagine a more suitable lube. Since it's an anal toy, the added viscosity definitely helps. It can be washed with soap and water, rubbing alcohol, or a 10% bleach solution. I wouldn't try to put it in the dishwasher top rack without first removing the bullet somehow; but as I said above, I'm not sure how easy that is to do.
After patting with a bath towel to dry I rest it in the disposable plastic shell it came in inside the box. I don't bother trying to stuff it in the little provided pouch, which is a tight fit.
The packaging is similar to other higher quality toys in this size range. The booster sits in a thin plastic 2-part clam shell, which fits inside its windowed cardboard box. Included is a brochure and instruction sheet. Each one is the size of a poster and has been folded 98 times down to the size of a stick of gum. Ok, not quite, but good luck trying to refold them. The Booster also includes a small storage pouch, but it's a tight fit and the insertable end of the toy would have to be bent to fit the toy inside the pouch. I store the toy just by sitting it in one half of the plastic clam shell, but the pouch would work for traveling. Speaking of which, why do people always talk about sex toys and ease of traveling? I mean are people really packing their bags for the Caribbean, then grabbing some sex toys and saying "oh, I absolutely can't live without these things while on a nice vacation for 2 weeks..."? Well, maybe this is the wrong crowd to ask such a question.
The Booster will likely have a bit of a learning curve if you aren't already accustomed to anal toys. The first time I tried it, I put a glob of Maximus lube on the tip and started gently pressing it against the opening of my ass. With an in-and-out motion, I could slide it in a bit deeper each time, until I got past the wide tip and it slid easily the rest of the way in. As it slid in I immediately felt it pressing gently on my prostate, just enough to create a nice soft pressure in that area. I realized that the flexible neck allowed it to easily fit my anatomy. The shape of the inserted end produces a gentle pressing sensation over the whole prostate area, not a localized one like intended in some other toys.
While masturbating, the toy makes the overall pleasure escalate faster. In one instance I kept bringing myself close, then backing off, and repeating, in order to make the session last for about 45 minutes before finally bringing myself over the edge. Another time I slipped it in, turned on the vibration, and just kept stroking non-stop to see how quickly I could cum - 3 minutes flat. That's saying something for a guy who normally spends about 30 minutes to an hour masturbating before finally finishing himself off. The actual orgasms aren't any better for me with the toy, as having something inserted in me becomes a distraction at the moment of orgasm. The pressure on my prostate does increase the volume of cum though, and I feel a bit more spent after finishing.