I love that the Bullseye is truly worthy of it's name, for many reasons. To begin with, as you'll find in my other reviews, I love that it's silicone. That's a quality material that doesn't irritate my sensitive skin. Silicone is incredibly easy to take care of. Although it's non porous, and doesn't need to be sanitized, I still like to stick my toys in the dishwasher, to make me feel more at ease. One thing to note is that silicone toys can be damaged by silicone lube, so it's best to find a water-based lube that you like, or, alternatively, you can try a hybrid lube, just be sure to test it first!

The Bullseye is harness compatible. All you need is a harness and some O-Rings and you are all set to go. This toy can be used for pegging as well as gender expression and vaginal sex with a partner (or two, or three!).

As for the use of the toy, this is totes awesome, man: Not only is it harness compatible, it's also anal safe thanks to the base. The last thing you want is a toy stuck up your bum that ends with a trip to the ER. Not cute, not fun. While I wasn't able to comfortably take it in my backdoor, I'm sure that you will, if you're so inclined, and if you're accustomed to larger toys the Bullseye would make a fun "Step One" toward a larger toy.

I didn't use it in conjunction with another toy. I needed to focus on the head of the toy and that meant that I didn't use it with a vibrator. As for the filling of the toy: I felt quite full, not as full as, say, the Maverick, but full enough vaginally that I felt pleasure. I was able to use the Bullseye without a primer for a larger toy; and even the Bullseye itself was good enough for a lovely jack off session.