The backend delight is a general purpose butt plug. It's able to be used on males or females and is suitable for beginners. Due to the battery cover, it can't really be worn out or under clothes. So its use is limited to sexual sessions.

The silicone material gives it a nice, smooth texture. It's non-abrasive and holds lube very well, so it's always comfortable in use.

The design of the toy itself is good. It comes to a very fine point, so it can be inserted very easily. It also has a very smooth taper, so it's comfortable all the way in. The flare at the bottom is relatively small, but it holds inside better than you'd expect. The one issue I had with the design was how far out the battery cover comes. It makes it impossible to sit down with it in. You can remove the cover, but that kills the vibration.

The functionality has some shortcomings. The vibration is controlled by a single button, with a single press switching through functions and a long press turning it off. Unfortunately, the vibration functions are in a weird order. It starts out on full blast and steps down, then starts at high-intensity patterns. The vibration is powerful for an AAA motor, but it's hard to get to what you want easily. Also, the vibration cycles forward when you turn it off, so you have to cycle all the way back around to get back to where you were.

* Update: The manufacturer has slightly modified the design of the product, so new items are rechargeable and come packaged with a USB charging cable.

The material is a high quality silicone, so cleanup and use is very simple. Just wash with soap and water and use water based lubricants.

The packaging is minimal, just some bubble wrap. It could probably have used some instructions to better explain the vibration patterns.